Chapter 304: Sunken Ship, Castle, The Sea, and... Night Watchman

"Eh...That's not right! That's not a wooden plank!"

Lin Yi's eyes widened, only to see that thing floating under the sporadic spots of light, emanating a cold breath, at least more so than a wooden plank; it resembled a kind of rough, hard, yellow-brown large square stone.

"Is it a stone?"

"Is it... that kind of stone?!"

This stone was not unfamiliar to Lin Yi; it was exactly the same kind of large yellow-brown stone block found in the stairwell of the Art Building!

The square yellow-brown stone blocks, half the size of a person, were piled up at the bottom of the swimming pool, untelling of how much time had passed.

It seemed to be a passage submerged in water, with the stone walls appearing to be etched with some sort of abstract symbols and text, now covered by growing moss, which like a thick green velvet blanket, seemed to conceal history itself.