Warriors: Firestar's Quest

I recently finished reading Firestar's Quest by Erin Hunter, the latest Warriors book to come out in paperback. It takes place between the first and second series of Warriors books, about seven books back from the current storyline. Firestar's Quest tells the story of the leader of ThunderClan, Firestar, as he goes off to rebuild a long-lost fifth clan, SkyClan. I thought this was one of the best books in the series. It was over twice the length of most others, and the cover was made of a shiny gold (causing odd effects in the scan at the right).