Rising Storm is a fantasy novel, the fourth book in the Warriors series, written under the pen name of Erin Hunter. Rising Storm was written by Kate Cary. The series follows the adventures of four Clans of wild, anthropomorphic cats. The plot follows Fireheart, newest deputy of ThunderClan, struggling to complete his duties as deputy, while still knowing that the previous deputy, Tigerclaw, is lurking in the forest somewhere, seeking revenge against Fireheart and his Clan. The book was first released as a hardcover in the US on 6 January 2004. It was then released in both paperback and e-book format. The UK has received the paperback version along with Canada. Rising Storm has been published in multiple languages, including Chinese, German, and French. Reviews for the book were mixed, with reviewers praising the suspense and cliffhanger ending; however, some reviews criticized the growing number of characters and lack of humor and depth. Source: Wikipedia (en)