Warriors: Bluestar's Prophecy

I'm really into the Warriors series, and this is another one I really like. It has the same concept of the actual series, and it gives you a taste of what the Clan life was like before the main series. Main character is Bluestar, and she's following this prophecy she got from the ThunderClan medicine cat. She doesn't quite understand it though until the end of the book. I've also read this one a couple times, and it's by far my favorite add on of the series. I really suggest reading this if you like the Warriors series and/or cats.