Chapter 621: Spectacular Underwater City, Glorious Sea Clan Civilization

They followed this small fish all the way to a seemingly ordinary underwater canyon hundreds of miles away.

The underwater canyon, deep in the waters of several kilometers, was completely devoid of any light. However, the small fish didn't hesitate and swam right in.

Seeing this, Ji Chen also didn't hesitate and said, "Let's follow them in."

The Sea Crystal Wyrm slowly flapped its crystal wings and followed the small fish, heading deeper into the canyon at an unhurried pace.

Once inside the canyon, though it was imperceptible, Ji Chen keenly sensed a dark current slowly flowing from the outside of the canyon towards its depths.

Soon, they reached the end of the canyon, where a pitch-black abyss-like hole suddenly appeared on the rock wall, slanting downward, leading deeper into the sea.