Redwall by Brian Jacques
Redwall Abbey, tranquil home to a community of peace-loving mice is threatened by Cluny the Scourge - the evil-one-eyed rat warlord - and his battle-hardened horde of predators. Cluny is certain that Redwall will fall easily to his fearsome army but he hasn't bargained for the courage and strength of the combined forces of the Redwall mice and their loyal woodland friends. . . . .