Sometimes, unraveling a mystery did not mean seeing the light through the clouds. In this goddamned reality, most mysteries were followed by a whole pile of even more bewildering things. Trying to uncover the truth of what happened back then felt like trekking over mountains and rivers: just when you finally crossed a great river, you looked up and found the South Pacific ahead of you...
As for that soldier who had gotten lost and arrived on Earth back then, we currently had the following clues: he had come to Earth at least during the early days of Uruk, over five thousand years ago from the present day—our earliest evidence. Based on the tomb discovered in the Taklamakan Desert, he had died more than a thousand years ago, leaving a gap of three thousand five hundred to four thousand years in between.
According to the Sumerian clay tablets, we knew that after arriving on Earth, the soldier had traveled across this primitive planet. From a series of actions—teaching the natives to identify celestial phenomena, imparting astronomy and geology to the locals, and attempting to alter the natives' writing—we could conclude that he had been trying to leave some kind of mark within Earth's native civilization, a future "beacon."
Of course, one could guess that he had simply wanted to be a living Lei Feng, to improve the quality of life and technological level of Earth's primitives. But that guess was obviously far too unreliable, and it did not fit Sandora's understanding of her own soldiers, so we had dismissed it long ago.
No matter what, he had probably wanted to leave a "mark," but with the power a Shilin Apostle should possess, he had done an incredibly poor job of it.
If a primitive civilization underwent systematic guidance, three thousand