Sunrise is the sixth and final book in Erin Hunter's Warriors: Power of Three children's fantasy novel series. HarperCollins published it on 21 April 2009. The plot follows Jayfeather, Hollyleaf, and Lionblaze on their quest to find Ashfur's true murderer. It was originally to be titled Cruel Season, though this was changed because HarperCollins, the series' publisher, felt it was too dark a name.

Erin Hunter is a collective pseudonym used by the authors Victoria Holmes, Kate Cary, Cherith Baldry, Clarissa Hutton, Inbali Iserles, Tui T. Sutherland, and Rosie Best in the writing of several juvenile fantasy novel series which focus on animals and their adventures. Notable works include the Warriors, Seekers, Survivors, Bravelands, and Bamboo Kingdom book series. For each book, Holmes creates the plot and the others take turns writing the books. Dan Jolley, though not an official Erin Hunter author, also writes the stories for manga published under the Hunter name. James L. Barry, Bettina M. Kurkoski, and Don Hudson are included under the pseudonym as the illustrators of the Warriors mangas. Natalie Riess and Sara Goetter are also included as the illustrators of the upcoming graphic novel adaptation of The Prophecies Begin.