In the game "Food vs. Mouse", the charm level can be viewed in the Mouse Illustrated Book.

Charm level is an attribute of the rats in the game "Food vs. Rats", which represents the attractiveness and value of the rats. Players can increase the charm level of the rat by collecting different rat cards to obtain higher benefits and rewards. The charm level can be viewed in the mouse illustration in the game. Players can click on the mouse card in the mouse illustration to view the mouse's attribute information, including charm level, attack power, health, etc. Therefore, it can be determined that in the game "Food vs. Mouse", the charm level can be viewed in the Mouse Illustrated Book.