The Warriors series!
I am currently reading a series by Erin Hunter. I love her books! This series is so exciting because there are four cat clans and they have to try and stay together because there is a warrior code and there has always been four clan and always will be. There is only one thing I dislike about this series is that when ever I have a favorite cat they usually end up dying and it's really sad! But I love reading these books anyways.