Mountain Time, 11:38 — We've arrived at Yellowstone Lake. Here's the lunch I've prepared for everyone in the morning. Let's eat while we walk. After a long and arduous trek, the Volkswagen Type 2 camper van is finally given the chance to rest its weary engine in the “West Thumb” parking lot . As the group file out one-by-one from the camper van, Schrödinger announces the obvious details of their destination to the group, in her usual stilted voice. On the north side of the parking lot, an area designated “Duck Lake” is surrounded by a temporary perimeter fence, marked by a restricted area sign. The local police have set up a sentry box nearby. Planck gives them a cordial and familiar greeting, then leads the group through the fence into the enclosed area. Passing through the fence, it becomes clear that Duck Lake had long ago been drained of water, and the lake bed now lies in full view of everyone. Welt is puzzled as to why the scene before him resembles a stone pit or quarry instead of an actual lake — Tsk! Tesla furrows her brow, and immediately ducks behind Welt to hide in his shadow. She seems to have noticed something. What's the matter? What rotten luck … Of all the times it could happen, it just had to be today … Huh? Lost and confused, Welt begins looking around in all directions, searching for an answer. But all he seems to notice is a group of people, dressed impeccably in black, riding an open-top elevator from the bottom of the lake, heading up towards them — — And this group appears to be led by a woman dressed in a masculine leisure suit and wearing a ponytail. She certainly cuts an extraordinary figure. At the same time, Welt can feel Tesla frantically tracing circles on his back with a finger. Urgh … What is wrong with you? Dr Tesla? Hi, Nancy! Already finished with your tour? Ignoring Tesla and Welt mumbling to each other, Planck greets the arriving personnel in a calm and collected manner. Mm. The gaze of “Nancy” passes by Planck and Schrödinger, before resting upon Einstein and the others. Are these “all” your students? It can be said so. The Long-haired Big Sister narrows her eyes and stares at Welt. Um … actually … We are members of the Imperial Institute, Lab 42 … Imperial Institute? The Lady in Menswear appears to be stunned for a few seconds. From London? Yes … Oh. With a feigned smile, she walks up to the front of Welt's face, and begins staring, her two eyes gazing at a position just behind Welt's back. … The hand drawing circles on his back stops, as if on cue. The lady takes one step closer. Welt feels like their noses are about to bump into each other. … Although Welt can hardly breathe properly — — The other person's gaze remains fixated on a specific spot behind Welt's head. As though Welt himself is a cloud of transparent air. … Uh … Should I perhaps … move out of the way? Of course. Be my guest. She doesn't even bother to make proper eye contact with the young man. … Sniff sniff. The Menswear Lady extends her neck, and begins sniffing around Tesla's body. Tut. What are you doing?! Sniff sniff. Hey! That's sexual harassment! Sniff sniff. Einstein! Planck! Schrödinger! Aren't you going to come and help me deal with her?! Sniff sniff. Enough! What the hell are you doing! If you keep doing that, I'M GOING TO GET REAL ANGRY! Oh? The Menswear Lady abruptly straightens her posture to an upright position. That ~ would ~ indeed ~ be ~ really ~ scary. I ~ remember ~ that, one ~ year, you ~ got ~ just ~ a ~ teeny ~ bit ~ angry, then ~ you ~ almost ~ had ~ my ~ office, burnt ~ down ~ to ~ a ~ crisp — Isn't ~ that ~ right? With a faint smile, she slowly recounts, word by word, what apparently sounds like a rather horrifying incident. Hmph, that incident was not my fault — — but still, I think it was a good thing that your building burned down and collapsed, you cheapskate! On the opposite side of the ring, Tesla refuses to back down or show any weakness, instead tossing back a look of disdain. … I cannot communicate with someone like you, who lacks common sense in fiscal matters. … I cannot communicate with spoilt, filthy-rich brats who grew up in privilege and wealth! … Do you know what kind of people I hate the most? Those who speak of liberal democracy; of benevolence, justice, propriety, and virtue; yet they conduct research on weapons of mass destruction dedicated to achieving world domination. Don't you feel just a little bit conflicted, Miss Tesla? Yes, you're not fond of inventing weapons! But do you think that, even if you stop inventing new new weapons, they'll be no more people dying from wars? There'll be a day, when both sides of a war will no longer be able to bear the cost of starting one — and that is our responsibility as inventors to bring about such a day! This is the only way to end all war! What else did your family do, apart from filling their coffers, winning the approval and praise of the pampered rich? — Can there ever be a higher purpose to such a lifestyle? What is this about a “General Electric” company, or should I say “General Pathetic” company? … You really went ahead and said it. Of course I dare say it, I'm exercising the bare minimum of my right to free speech! … Okay then. “Free speech”. For a loser bitch who refuses to speak politely — — a minor mishap, may be considered a major blessing, don't you think? The mouth of the Menswear Lady twitches a little, and she makes a gesture as though she is signalling for someone. Y-y-you … What are you thinking of doing?! What … do you think I want to do? The Menswear Lady cocks her head innocently to one side. Hey … This … This is happening in broad daylight! Poor Tesla becomes even more nervous when she sees the other person feigning innocence. Fu. … Eh? Fu … fu ha ha ha ha ha ha ha ha HA HA HAHAHAHAHAHA! The Menswear Lady cannot hold it in anymore: without any hesitation, she begins laughing heartily towards the sky, and the previous feeling of tension and aloofness completely evaporates. Y-y-you … scoundrel! What are you laughing at all of a sudden?! Fuhaha … Nothing in particular … The other woman tries hard to hold back her laughter — I just wanted to say something like that once in a while … And your response was really amusing … Fuhahahaha … how could you be so cute!!! Y-y-y-y-y-y-you … … pervert!!! A few minutes later. … Mm-hmm. I too understand the current situation. The Menswear Lady, who had long since recovered her cool demeanour, nods indifferently. The investigation will be left to you. Pew pew, my students are simply terrific! The Long-haired Big Sister makes an exaggerated motion to imitate the firing of a submachine gun. Yes indeed … especially that red-haired one, she seems full of fighting spirit now. … Ho ho, that's a good look. You should keep it up. The Menswear Lady suddenly reaches out and pats Tesla's head, before strutting away without so much as a second thought. … Abominable … this woman … !!! You wait and see! As payback for today's events, I must re-double my efforts! … That person just now … She was a bit scary, wasn't she? Welt scratches his head, completely oblivious to the context underlying that entire interaction. Nancy Thomas Alva Edison, the patron of the North American branch, can be considered the actual person in charge — Many people in private refer to her as “Princess Nancy”. Urgh … Is it because she's always so overbearing and arrogant — so aggressive and moody? Not only that. Thanks to her family, this person is — very, very, very; very. Very rich. With much deliberation and contained anger, Tesla recites a total of five “very”s — It is fair to say that she bought out the entire North American branch. Ah? Isn't she a very powerful person then? It should be said, that she is more powerful than you could ever imagine. Red Twintails pouts with a slightly despondent expression. She is undoubtedly a genius — whether it be the art of invention, or the art of business — she is still a genius. If you don't consider some of her other “qualities” … she is indeed an outstanding, extraordinary person. That's … We have a conflict in ideologies! And on top of that, personal grievances! Anyway, forget it! It'll get annoying if you keep asking!! Uh … Unfortunately Tesla did suffer a bit during her internship under Edison. Let's just consider the two of them as having an ill-fated, star-crossed relationship … Hahaha. As Professor Planck explains, she takes her turn to pat Twintails' head. This time, she does not offer any resistance. … Anyway, we should end discussion on this topic. Schrödinger glances grudgingly at Tesla, pulls out her ID card, and swipes it on the activating device of the elevator. Let's hurry up and enter the ruins — “And while we were advancing toward the centre, to which all weight is drawn — ” “I, shivering in that eternally cold shadow — ” “I know not if it was will or destiny or chance.”

Note:

The poetry recalled by Welt is from Dante's Divine Comedy (Mandelbaum translation, Inferno Canto 32. Translator's note: the original Chinese text omits the last line, without which the verse does not make much sense in English. In Chinese it would have read: 我不知这是出于天意，还是命运使然。)

So cold, so cold. This is how it is with an open-top elevator. Please bear with it just a little longer. Ara, Assistant Welt, such a delicate flower, already struggling at five degrees below zero — — I'm really looking forward to seeing you in January when it's minus 20 degrees, just to see your reaction, hehehehe. … Sorry, I really don't like the cold. Then work hard to train your body. At some stage I want to take you to the Antarctic. … Even you, Einstein? Even you? This is … Although it is difficult for anyone, half-frozen in the cold wind, to express any sort of emotion, Welt's eyes betray his great shock at the scene before them. It is a large, solemn, yet incongruous-looking, door. The heavy-duty metal door is covered in many scratches accumulated over many millennia, yet on the panel surface one can still clearly distinguish a line of simple but odd text. ⵚⴳ ⴹⴷⵡⴱ ⴺⵋⴱ ⴶ ⵎⵓ (Eba Dagami Tashi Ha Nu) For the next generation … to fight … it is up to us … “It is for the future that we must fight”. That's … an approximation of its meaning. The Finn's voice becomes a little tense and excited. Truly a professional — You can even translate it directly. Well, well … The librarian scratches his head, embarrassed.. It's just that, compared to the others, I have access to research materials that are a lot … closer to the “original source”, I guess? Besides, if it is an audiovisual resource, I can only ask my “student”, someone better qualified, to interpret in my stead. Ask … a student? Even then, you are already talented enough. After all, humans cannot compete with machines. Ah, we digress, we digress. The Long-haired Big Sister snaps her fingers — Shall we all enter? Everyone? Walking through the ruins while chewing on a meaty burger — for Welt, this is truly a novel experience. The structure of the ruins is reminiscent of the ancient city of Petra, as seen in a certain geographic magazine; or some dwarven city as described by Tolkien.

Note:

Petra (Greek: Πέτρα) is an ancient city in Jordan. Historically, it had been a major trading town, situated strategically on a main thoroughfare, and allowing transactions between the East and the West.

Petra is a very unique city. Its entrance is a narrow canyon about 1.5 kilometers long, surrounded by cliffs. All the main buildings in the city had been carved out from the russet sandstone cliffs.

In the huge underground cavern, high-powered floodlights, marked with a “General Electric” trademark, pour bright light upon both naturally-formed stalactites and artificially-carved buildings alike. Remnants of individual rooms are scattered about, as though there were stars under a night sky. These structures are connected by ancient plank walkways made from a metal resembling stainless steel; and the utilitarian, industrial design of it all gives one a sense of solidity and reliability. The crumbling fences and dilapidated walls, together with the scrapped machine equipment, form a complex labyrinth. The entire lamentful scene is reminiscent of Pompeii buried under volcanic ash.

Note:

Pompeii was one of the ancient Roman cities, and was buried by the volcanic ash erupting from Mount Vesuvius on August 24, 79 AD.

Since the time in Pompeii was permanently fixed at August 24, 79 AD, historians and archaeologists could learn much about the life of many Romans during the first century.

For a historian like Elias Nokianvirtanen, such a scene is undoubtedly eye-opening — — In fact, he begins behaving like a child visiting a museum for the first time: excitedly taking notes, lying flat on the ground, observing various minutiae, without any regard for his own dignity or the presence of others. Wow, M.i.L.a. ! With tomato sauce on his face, Dr Nokianvirtanen is completely mind-blown. Oh-oh-oh! Isn't that a G.e.c.K.? Spewing breadcrumbs from his mouth, Dr Nokianvirtanen dances and gesticulates with joy. Look, look! There are formulas left on this blackboard! … Alas, it is too faint, and I can't get the general gist of it. Speaking of which, what was the name of that one theory you guys were studying? Something about “M-theory”, right?

Note:

M-theory is a theoretical system in physics that attempts to unify various forms of “superstring” theory.

Although a complete formulation of M-theory has not yet been found, this theory should be able to describe abstract objects called “branes”（a membrane-like set of points in high-dimensional space, directly generalising from the concept of a single “point” in one-dimension, as well as being able to approximate eleven-dimensional supergravity at low energies.

With cream-covered fingertips, Dr Nokianvirtanen attempts to pull someone over. One after another, the girls begin to distance themselves from this man who has cast aside all self-restraint, probably because they cannot tolerate his wild enthusiasm. Schrödinger. Yes? This place is actually very sturdy in construction. After tucking away the wrapping paper from her eaten lunch, Mophead directs her searchlight towards a reinforced bracket at the top of the cavern. Most of these difficult-to-spot brackets are overgrown with stalactites, so it is clear that the supports are not modern creations. Mm-hmm. The Corkscrew Curl nods, and rapidly devours the last piece of sandwich in her hand. That's right. The supporting structure is intact. There is no risk of falling rocks. So all this rubble at the bottom … The destruction must have been man-made, yes? Mm. Can't be wrong about that. … Foreign invasion? Infighting? Infectious disease? Who knows, that would be the Finn's — Shh. Schrödinger was mid-way through her response, when Einstein suddenly places her index finger on her own lips. You hear that? … Seems like there is some noise. … Schrödinger shakes her head. … I can't hear anything either. Tesla speaks in a hushed tone. Can't you guys hear? A very tiny, but very sharp, piercing sound … a little bit like tinnitus. Einstein closes her eyes, jams her pinky fingers into both ears, twists them around a few times, then suddenly pulls them back out. Nope. The noise is still there. I'm not hallucinating. But we really cannot hear anything, no? The Finn, who had finally wiped his face clean, stares blankly at Welt. … Well I can't hear anything either. Welt also shakes his head. … Mosquito tone. Planck places a palm to her forehead. In fact it seems to be an extremely high-frequency mosquito tone. Even Nikola cannot hear it any more. Can you tell where the source of the noise is, Lieserl? I'll try. Mophead closes her eyes, places both hands to her ears, and concentrates on determining the direction of that tiny piercing noise. Tesla hurries forward and holds her arm, guiding her along the path. What's a mosquito tone? Welt has absolutely no idea what the scientists are busy doing this time. In simple terms … it's an ultrasound that only a minor can hear. It's most likely caused by some man-made facility that is still operational down here.

Note:

“Mosquito tones” are tones specifically produced by special sound waves with frequencies of around 17.4 kHz. The ear's hearing of these sounds begins to decline sharply after the age of 18, and they can't be heard at all by the age of 25.

On the other hand, everyday imitations of mosquito sounds, including those from real mosquitoes, produce sound waves with frequencies of about 8 kHz, which can be heard by most people with normal hearing.

Focused on helping Einstein, Tesla gives a few words of explanation without looking back at him. There is a wall in front. Be careful of the step. Wait … this is the dead end. We need a detour. Following Einstein's lead, the group slowly ventures into the depths of the ruins. Along the way, in addition to those baffling installations from the Previous Civilisation, there are also many relics from more recent times — — numerous bones, unweathered and intact; early nineteenth century rifles; and even some tents that were apparently from the local Shoshone tribe.

Note:

Shoshone is an indigenous tribe that was widely active in the western United States and northern Mexico. Its language belongs to the Uto-Aztecan family.

In the strategy game “Sid Meier's Civilisation V”, developed by Firaxis Games, Shoshone appeared as an independent civilisation and its leader was Pocatello.

These … What are these? Even Welt understood that the rifle in front of him, along with the other objects, could not have been more than two hundred years old. Don't know. The Finn shakes his head. At such a location under ground, I cannot figure out how there could be traces of current civilisation activity. Could it be an investigator previously hired by our organisation? Impossible, I've never heard of our organisation working with the indigenous tribes. So … has this place ever been used as a refuge by indigenous people? … Do you think they could have had the ability to drain the lake above us? Eh … With the world always changing, perhaps at one point in time, this lake did not exist? … Even so, how did they get through that large front door, which literally required hydraulic pumps to breach from the outside? That's … Shh. Planck makes a gesture, signalling them to “please speak more softly”. （If you are really curious, I think there is a famous quote in a novel that fits this situation just now.） … ? (L'humaine sagesse était tout entière dans ces deux mots …) (Attendre et espérer!)

Note:

“All human wisdom is contained in these two words: Wait and Hope!” — “The Count of Monte Cristo”.

Um … I think this is the spot. The group has halted in front of a room deep in the ruins. Thank you for your effort. Cover your ears and rest a while. Leave the opening of the door to us. Planck urges Einstein, while at the same time studying the mechanism on the containment door. Crunch. To everyone's surprise, the mysterious door opens with only a light tug from Planck. … … I'm, I'm not that rough a woman, you know. Hmph. … Nobody cares, Professor. On the other side of the door is an abnormally clean room. On all four walls, some material resembling plastic wallpaper has already liquefied and crumbled away; but remarkably, the ivory-coloured table in the centre of the room is almost spotless. On the table sits a weird machine with many tubular protrusions — within it, red and green fluorescent lights flicker incessantly. There shall be no more strange noises from now on. Schrödinger picks up the weird machine from the table, and takes out a bar-shaped, battery-like, object from its base. From the look of its structural design, this should be an ultrasonic generator. I don't know how it could've remained functional for so long. Ultrasound … So the mosquito tone was just a secondary effect … Planck lifts the portable torch over her shoulder and looks back out towards the door. Lieserl? Can you still hear that sound? … No. It's gone. To show that she is indeed no longer affected, the girl walks through the door with her head raised. Wait … this is … Suddenly, the girl's eyes widen. Aided by the torchlight on someone's shoulder, she is able to notice something on the ceiling. No, this can't be … This … this … The Finn, upon raising his head, exclaims in surprise. Isn't that English? Modern English! It's really true … Th-that writing is — To the young ones who come here I leave the last Soulium to you Knight of the Maiden Castle H Londinium Doire A Wh … what is this? Schrödinger! The machine you are holding … Is it missing something? Well … let me see… Corkscrew Ponytail places the mysterious machine on the ground and begins dismantling it. It should open up here … Oh … There is indeed a cavity in it … and a receptacle … … An ultrasonic Soulium recorder? Tesla's eyes suddenly flash with excitement. It must be this H person who wants to entrust us with the data in the Soulium! So … could it be some very important data? Schrödinger places the mystery machine back on the table, then gestures before the excited Twintails. Uh … it must be that this H somebody had hidden it in a location that is more secure or better concealed, don't you think? So why did he or she do this? Wouldn't it be better to leave it intact if you want to give it to future generations to study? … Maybe this person had some urgent reason to transfer the Soulium to a new location? So you want to say that some ancient person had taken the Soulium and left this clue for us? Schrödinger shrugs her shoulders in a non-committal manner. In that case, shouldn't there be a clearer hint? — And not some vague ambiguous text? No matter how you look at it, it seems more likely that someone has stolen the Soulium and is now pulling our leg. Well … Furthermore, according to this reasoning, we are not the first — Londonderry, a city in Northern Ireland. All of a sudden, and out of the blue, the Mophead who had been silent all this time speaks up. Uh … Ah! The Twintails who had been lost for words has suddenly reached an epiphany. Yes! Londinium was the old name for London in Ancient Rome!

Note:

Londinium, also known as Roman London, was founded in about 43 AD, and later evolved into today's British capital, London.

Between 190 and 225 AD, the Romans built a sturdy wall for Londinium, as one of the largest projects in the British province at that time, and it was as famous as the Great Wall of Hadrian. The London Wall stood for nearly two thousand years.

Yeah? Wait? Why Northern Ireland? Of all the places whose name includes the word “London”, only “Londonderry” has the nickname, “Maiden City” or “Castle”. This is because, historically, it has never been captured by foreign enemies. Incidentally, “Doire” is also Gaelic for “Derry”.So that's double the evidence.

Note:

Londonderry, called Derry (Gaelic: Doire) by the Irish, is a city in the northwestern part of Northern Ireland in the United Kingdom, and is also the county seat of Londonderry County.

The city has the nickname “Maiden City” — because its walls have never been hit by artillery shells during the recent wars. It is also one of the very few cities in Europe whose walls have never been breached.

For the average person, the city's popularity is likely to come from song “Londonderry Air”.

Oh-oh-oh! That's it! Twintails looks admiringly at her roommate. … That may be just a coincidence still. Schrödinger is still not particularly convinced. How in the world can there possibly be such a coincidence?! From a mathematical perspective, don't even talk about it — even the conception and birth of a person is a zero-probability event.

Note:

In probability theory, if the probability of an event is 0, it is called a “zero-probability” event, which means that the event “almost certainly does not happen”.

Since in an infinite set, the probability of an event depends on its measurement in the sample space, there are indeed “possible” but “almost certainly improbable” events. For example — “take any number from all real numbers, and the number is rational”.

Don't talk to me about mathematics! What does this have to do with maths!? Ahem. Seeing that the direction of the two girls' dispute has slowly deviated off-track, Big Sister Planck deliberately clears her throat. At the moment, we cannot confirm anything yet. I do have an idea, but I don't know whether you'll agree … Before introducing her proposition, she gives Tesla a sly glance. Late night, the next day. On the flight back to London, a terminally-bored Welt returns the playing cards to their box. One more round of that single-player game called “Solitaire”, and he felt he could vomit.

Note:

“Patience” (in Europe) or “Solitaire” (in North America) is a single-player card game that has been included with Windows since version 3.0. Its official Chinese translation is, quite simply, 纸牌 or “playing cards”.

Interestingly, since Windows became a standard operating system, government employees have been playing the game during business hours, and it has become a common problem worldwide. In 2006, when the then Mayor of New York City, Michael Bloomberg, saw a civil servant playing Solitaire with an office computer, he decided to fire him immediately to serve as a warning to others.

Einstein again has a book covering her face, and Tesla is again asleep and sprawled all over her seat. As for the Finn who was there before — he is no longer on this plane at all. After today's investigation, I suggest that we divide our troops to follow two paths. The previous day, at the cavern beneath Yellowstone Park, Professor Big Sister proposed her idea. The Lab 42 team shall return to London to investigate the clues of this certain “H.A.” person; We, the North American branch, shall continue to excavate these historical ruins — Ah, it'll be better for Dr Nokianvirtanen to stay here and aid us. Your translation skills will be even more useful here. That should be no problem … as long as both Einstein and Tesla agree. Mm … it won't be a bad idea to leave the expert on ancient writing with us.. It seemed that even Schrödinger was quite satisfied with this arrangement. No problem from our side as well! On the other hand, Tesla was all too eager to speak on behalf of Lab 42. In addition, I have already spoken with Edison — and I will return to the headquarters as soon as possible to report on behalf of the North American branch. Conveniently, I'll be on the same flight as Lab 42. Huh? Schrödinger was apparently unaware of this. Shouldn't she attend the debriefing in person? To let our “Princess Nancy” go and meet the Council … Hehe, I don't have to say anything, and you can probably imagine the scene that would cause. The Long-haired Professor laughed bitterly. Recently there have been more and more conflicts between our branch and headquarters … if I go in her stead, the communication will run just a little smoother. That just sounds like a procrastination tactic. The Corkscrew Ponytail sighed. Since Her Royal Highness made the branch a business, we have not had a good relationship with that group of old codgers. Hehe, they seem to be friendlier even with the Soviets. Big Sister shrugged. But to be honest, in their eyes, being who they are: the nation, the economy, and other such things from “surface society”; these are all but simple toys to them. … After all, they seem to think that only the Valkyries can really solve problems. It would be nice if the efficiency of the prototype mecha can be increased two to three-fold. Planck reassuringly patted Schrödinger's head. As long as we continue to make such advances in our technology, our delaying tactics will not be in vain. Ah … so bored … You! Won't you come play with your sister? At some point in time, the Long-haired Big Sister had lept into the seat next to the young man. Forgive me, but I must refuse. It seems that the young man's social status has not yet reached the bottom of the food chain. Ara … Why am I so quickly despised … The other person plays around with the hair by her ear, and pouts delicately. … Who are you to blame? Just a while ago, you pulled me over to tell me a bunch of really bad jokes. Tsk. … Hmm? Don't tell me that you still wish to continue? Scientists clearly have all kinds of hobbies … The Long-haired Big Sister puts on a pitiful face. Compared to eating, drinking, whoring, gambling and so on, what is it to occupy you with a little joke … ? From my perspective, is it because you only have my students in your heart? You despise your big sister for being too old, don't you?! No … no, that's not true … Why would you think so?! Then come and play with me! … So, Professor, can you at least explain what you want to play? Hmm … What sorts of things would a little brother be interested in … Since the others are sleeping, how about we go on a date? … Huh?! Wh-what are you saying just now?! Hmm? What, is there something with your big sister that you're not satisfied with? … This is not a question of being satisfied or not! Mmm … but after we get off the plane, won't we be going off on our own separate paths, to do our own separate things? That's right … So? So … The older sister smiles mysteriously, then tears off a few pages from her notebook — And begins scribbling.

— Will you be able to protect the girls?

If it comes to that … if it's something within an ordinary man's ability …

No. That will not be enough.

We assume that there is indeed a person from the past — the so-called H.A. — who took the Soulium steel from the ruins of Yellowstone, and intentionally left clues behind.

In that case, there is one thing that we can determine here — he, or she, must have felt that it was not safe for the Soulium to remain there.

Moreover, even moving it to the United Kingdom and hiding it properly is not enough.

Also, they felt the need to leave behind enough clues for future generations to inherit their own cause.

So here comes the question —

What kind of conflict-of-interest is it, that would make someone go to such lengths to do this?

It's hard to say …

Does the other party have a corresponding successor?

Is it some organisation that cannot be opposed by one person alone?

Well said.

So, an organisation that cannot be withstood by a single person, and that is also interested in Soulium —

In the world that we know of today, what are the possible answers?

I only know of one … but …

I also know of only one answer.

Do you mean —

Before the young man can utter a sound, the slender forefinger of the Long-haired Big Sister is placed gently upon his lips. She gracefully moves her body, switches to the other side of Welt, and sits down in a more discreet location. Red lips linger near his eyes, and titillating whispers tease and tantalise his imagination. … Should we … speak in whispers? It's just some … private words … between the two of us …