Chapter 122: Creatures in the Whirlpool

Xu Xin placed the blue crystal into his backpack, swimming around in search of similar stones nearby.

Though there were many colored stones on the seabed, most were dull and murky, without the clear transparency of the blue crystal earlier, and with his identification ability, each emitted a white glow.

Xu Xin casually picked up a stone that was entirely purple and held it in his hand.

[Purple Crystal (White): An ordinary crystal, can be used for carving.]

White-grade crystals do not affect the "decorative value" of the treehouse.

Xu Xin discarded this crystal casually and started searching for crystals emitting green or even blue light underwater.

After swimming for a long time, Xu Xin eventually found three green-grade crystals of varied colors, namely a purple crystal, a red crystal, and a green crystal. His identification ability allowed him to spot the glow at a glance, making his search very efficient.