If this were by the sea, you could say the holes and scratch marks on the rock were caused by erosion and weathering from the waves and wind, but the Baihua Pool of the Zhang Family is calm as a mirror; there's no such thing as weathering and erosion here.
Could it be…? Lin Tian's heart stirred; he suddenly thought of a reason, but he didn't quite dare believe it, until one sentence from Zhang Lingyu shattered his doubt.
"See the scratches and holes on the rock? Those are left by the Immortal cranes when they grind their beaks and claws." Zhang Lingyu pointed at the rock and explained.
"Seriously? So it really is that." That was exactly what Lin Tian had guessed just now, and he hadn't expected it to be true.
As if responding to Lin Tian's words, the Immortal crane on top of the rock let out a cry, scraped its claws a few times on the rock, stone dust instantly flying as several grooves appeared on the rock's surface.
