Where is mir's wechat legend senior mage book to play?

There are two advanced skill books of the mage, one is to extinguish the sky fire, and the other is the meteor fire rain.

Acquisition method:

1, beat the corpse king at the corpse king temple.

World BOSS above level 2.35

3. Underground treasure.

The above three methods are how to obtain the advanced skill book of the mage.

-76 players' network legend mir mobile phone version answer group.