His Dark Materials by Philip Pullman.

Bah ! The first book in the series was great. The second one was ok. The third one was what felt like 500 pages of non-stop didactic moralizing. In the unlikely event that I ever meet Pullman, I would love to remind him that this kind of heavy-handed anvil-dropping didn't work for C.S.Lewis, and it doesn't work for Pullman, either. Bah I say !

Watership Down by Richard Adams is good and is about bunnies.

I read it when I was an adult, and it almost gave me nightmares. It's a great book, don't get me wrong, but...

Michael Ende - Neverending Story

I upvoted your post just for that. Makes up for the Pullman thing.