From an old review the first edition of "Magical Kitties Save the Day!", I found a reference to Erin Hunters's Warriors series. [Hi Michelle!] since not everyone does the Google deep dives I do, I wanted to mention the book series again here.
They are all available used on Amazon. Or new.
I'm going to add a pointer to an earlier Atlas Games Article:
That was a good read full of interesting ideas.
Thanks! I'm really glad you liked it!