Under certain circumstances, bones could exist millions of years and turn into fossils, but obviously, the forsaken prison in the Undersea City did not meet the harsh requirements.
The creatures here were different from those in the sea. Regular bones couldn't stand their biting at all and might become incomplete after several years. But why were the remaining bones here still intact? Han Fei was rather shocked.
Crossing the rotten threshold, Han Fei even ran to the bones and squeezed them. He found that the bones were rather hard. There was no telling whether it was because of long-time cultivation or for other reasons…
With confusion, Han Fei examined other prison cells. Molds and moss were everywhere on the wall because of the passage of time. Some mosses were even growing on the bones.
