In The Tale of Despereaux, there is a lot of darkness, a lot of despair. There's also a lot of light, redemption, hope. There's forgiveness, there's friendship, there's love. But the world in all of its potential craziness is also there.
What do you have to fear? Nothing. Whom do you have to fear? No one. Why? Because whoever has joined forces with God obtains three great privileges: omnipotence without power, intoxication without wine, and life without death.