After passing through the long tunnel and breaking through the final few autonomous weapons, what appeared before everyone was—
the sky.
"There's a sky underground?" Mash walked at the front, staring blankly upward.
The tunnel had led downward all the way, and they were now at least several hundred meters below ground. Yet the light before them came from the sky.
There was neither windblown sand nor darkness. Through the massive opening at the center, they could clearly see blue skies and white clouds that seemed close enough to touch, dreamlike beyond belief.
"What is this...?" Fujimaru Ritsuka was equally astonished. It was the first time he had ever seen such a sight.
"How spectacular. Though it is an artificial sky, creating such a miracle could not have been easy." Like Fujimaru Ritsuka, Sherlock Holmes tilted his head back and clicked his tongue in admiration.
Beneath the sky stood six pillar-like structures. Three of them were especially towering, as though they might pierce the heavens.
The rest of the central area was layered upon layer of structures, seemingly chaotic at a glance, yet filled with order upon closer inspection.
"Those are obelisks."
Everyone's gaze gathered on the most conspicuous object at the center, and Sherlock Holmes, who had long known what it was, took the initiative to explain.
"The prototype of Chaldea's spiritron computation device, Trismegistus, is that—the Atlas Institute's largest recording medium, the pseudo-spiritron computational engine Hermes."
"No wonder... It does resemble Trismegistus. No, rather, Trismegistus resembles this, doesn't it?" Mash blinked.
"You only need to input a question into it, and it will give you an answer."
Fujimaru Ritsuka did not dwell on that. He merely frowned. "Then where is the truth we're seeking, Mr. Holmes?"
"Just wait a moment." Holmes smiled and stepped forward. "Though there is