Before the very eyes of Bu Qingyun and the others, tunneling machines shaped like centipedes rolled out, their bodies roughly ten feet thick and anywhere from over a hundred to a thousand feet long.
Rumble...
Once the entered commands had been verified, the machines roared into motion like thunder, and one Iron Centipede after another burrowed underground.
They actually began construction simultaneously, setting out from different starting points along different routes.
"Master, can this really work?"
"With an approach like this, a deviation in just one route will send the excavated passage off its intended course. Tug one hair, and the whole body moves."
"Even if there are ways to remedy it later, the manpower and time needed would be enormous."
Doubt written on their faces, the disciples all turned toward the widely experienced Bu Qingyun.
Bu Qingyun shook his head. "How would I know whether they can do it? I've never seen anything like them before, either."
One disciple reassured the others, "Forget it. There's no point worrying so much. We're following the requirements anyway, so even if something does go wrong, it won't be our fault."
Bu Qingyun sneered. "Naive." But he offered no further explanation.
Yet barely half a day later, Heavenly Pivot used a mystic light illusion array to project the construction information in an intuitive display of data and charts, making every aspect of its progress clear at a glance.
In a three-dimensional mystic light view, the mountain was rendered translucent, while the excavated tunnels were shaded a hazy, smoky gray, each advancing in a different direction.
"Look! This tunnel has broken through!"
"What? That fast?"
"What exactly are these Iron Centipedes? Is this so-called engineering machinery really that incredible?"
Listening to his disciples' noisy discussion, Bu Qingyun turned his gaze toward the display. It