บท 444: Chapter 61: Duel with Jing San

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He had always felt that the Black Tower was familiar, and now that he thought about it... the Black Tower did indeed resemble a plug for a hole.

Cain had not lied, or to put it another way, Cain's speculation was somewhat reasonable.

In a certain sense, this was not some kind of divine power; after the isolation of technology, it was a communication technology that conformed to the Era of the High Tower. It's like having one signal transmitter and one signal receiver.

Many strange symbols were carved on the stone towers in the Stone Forest.

Bai Wu had seen these symbols before.

So much so that the moment he saw these symbols, Bai Wu immediately confronted Cain:

"Don't think for a moment that I have forgotten these things. Cain, if you don't explain clearly, I will kill you right now, and you know very well that I can do it easily."