```
After all, this formation was set by himself, and it was not activated using any harmful amulet or poison, and the thunder monkeys inside showed no abnormal reactions, so it should have been simply an illusion of perception. If anything went awry, one could simply use an escape technique to flee.
Therefore, Li Fan personally descended into the formation to check its operation.
The outer formation was in order, and Li Fan could sense with his Divine Sense that the aura and spiritual qi around were being disrupted by the stance of the formation. However, looking around with the naked eye, the scenery between heaven and earth had not changed in the slightest. So, the changes were affecting living beings... Ah, in that case, the illusions on the bookshelf... Could it be...?
Li Fan, with an invisibility charm, headed towards the hot spring. It was indeed as he had surmised, no wonder it was sealed away as a forbidden book...
