Erin Hunter 
Warriors: A Vision of Shadows #5: River of Fire 

Erin Hunters #1 bestselling Warriors series continues in A Vision of Shadows #5: River of Fire.Star Clans prophecy has been fulfilled, and the long-lost Sky Clan has returned to its rightful place among the other four warrior Clans. Many cats believe the danger is past. But after moons of division and strife, Shadow Clan is in danger of falling apart forever….Full of epic adventure and thrilling intrigue, this fifth Warriors series is the perfect introduction for readers new to the Warriors worldwhile for dedicated fans, its a long-awaited return to the era of Bramblestars Thunder Clan, after the events of Omen of the Stars.