What is the author's style in Redwall by Brian Jacques?

Redwall by Brian Jacques is a great swashbuckling tale that pits evil against good. All of the characters are animals. The narrator takes for granted that they walk upright and talk like humans. Each species obeys its proper nature and the speech of each is appropriate. Thus, the pack of rats led by the savage Cluny the Scourge that has been steadily advancing towards Redwall Abbey is a bye-word of terror even before they arrive. The creatures living around Redwall Abbey hope that they are just a legend. They arrive, however, crashing onto the scene (literally), set up camp in an abandoned church, and announce that they will kill anyone who fails to surrender. They snarl and scheme and bluster against the peaceful mice of the Abbey, who politely refuse, and must then overcome their humble nature to repel the siege that the rats mount.