C2342 Activate the Formation

Looking back, Chu Yan saw a huge door hidden deep behind the clouds, blocking out the sun.

In the middle of the door, there was a strange cloud, as if there was a bottomless ocean.

From time to time, there were disciples coming in and out of the door.

Those who entered were gone in the blink of an eye.

Those who came out... Without saying anything more to Chu Yan