"A large safe buried underground... the surprises this world gives are quite plentiful," Ailuodi muttered, "Even on Earth, cutting it open wouldn't be an easy task, right?"
"Hmm. If it's hard, we'll need a specially made drill bit. Or, we could switch methods and use high temperature to cut, like with gas cutting or arc cutting... It's just that I don't know what the melting point of this metal lump is."
"You can't actually conjure up these things, can you!"
"If it's gas cutting, there's a record of it, and it's doable with a lighter too, but it makes too much noise, I have to get everyone out of here before I can try it," Chaoyang said quietly, touching the wall, "What I'm truly curious about is, who left behind this massive creation?"
This reminded him of the temple beneath the Huiqiu Mine.
It was even larger in area and more magnificent in scale, yet it was still built of stone and didn't exceed the knowledge of the era.