Chapter 645: Chapter 207_1

In the realm of cultivation, there are many treasures capable of transmitting messages, allowing people to use secret techniques to send letters. However, when one is within a minor thousand world, it is impossible to send messages no matter what.

Beichen Ying and Li Lingwei looked at Cao Zhen with astonished and puzzled expressions. For a moment, they had but one thought in their hearts, what kind of great ability did Cao Zhen possess! He was somehow able to send messages even while inside a minor thousand world.

How did he manage to send the message across a minor thousand world?

The two of them stared intently at Cao Zhen, but no matter how they looked, they couldn't tell if Cao Zhen made any special move.