Erin Hunter 
Warriors: A Starless Clan #4: Thunder 

Erin Hunters #1 bestselling Warriors series continues! Discover more epic adventure in this fourth book in the Starless Clan arc.Frostpaw was told to trust no cat, but a brutal attack has left her gravely injured, and shell need to depend onsomeone. When help arrives in the form of a young warrior, she convinces him to protect her as she follows Star Clans cryptic directions toward the roots of River Clan, where Riverstar has promised shell find the answers shes been so desperately seeking.Back at the lake, the tension between Shadow Clan and its neighbors might be easing, but the peace is fragile. Until Star Clans chosen leader is found, the slightest push could lead the Clans back into outright war.Packed with action and intrigue, this seventh Warriors series is a perfect introduction for new readers, while long-time fans will be thrilled to discover what unfolds after the events of The Broken Code.