The author's name is Brian Jacques. You could start with "Redwall", but there's also a 'prequel' called "Martin the Warrior". It's the story of some good animals; badgers, mice, moles, voles, and hares who have to protect themselves from the bad animals; weasels, stoats, rats, and foxes. They are a series of books, and they are somewhat formulaic, but the kids always loved them. I'm sure your public library has them.
Formulaic, ha, yes, they are that. I liked that series... the bothers still read each new volume... but they did all have rather the same plot. Good books though.
Mom used to be a little heavy on the "Anne of Green Gables" and "Little House" books, and light on the "Prydain Chronicles" types but I have so many fond memories of being read-aloud-to. Definitely something I will do when I have kids.