My wife says she her good things about Redwall and also the Wingfeasher saga. But she hasn't read them herself. My wife says if you're a Christian she recommends canonpress.com
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We've read one Redwall book, a friend told us about them. It was really good. Thank you for reminding me! He's watched the Wingfeather series on Angel Studios, I think we have the books. Maybe we'll do those!
I was about to recommend Redwall! Absolutely loved those books around age 10-13. If LOTR is a bit too advanced you definitely have to do The Hobbit. Written for a younger audience than LOTR