C4061 The Tunnel Is Open

At that time, Hanyu Xiaotian had already thought about it. The huge ancient ruins that existed on the Nicotine were actually used to seal the ancient Hiro rune, and the Hiro rune was used to seal the ancient ruins?

And at that time, Hanyu Xiaotian had obtained a slate that had a Heaven and Earth River Imprint engraved on it by chance, and had comprehended many of its secrets