Erin Hunter 
Warriors: A Starless Clan #3: Shadow 

Erin Hunters #1 bestselling Warriors series continues! Discover more thrilling adventures in this third book in the Starless Clan arc.A crossroads for the Clansand the warrior code!The warrior code now allows a cat to formally change Clans, but Shadow Clans newest arrival feels increasingly unwelcomeand though Shadow Clan warrior Sunbeam thinks every cat deserves a chance, one of the loudest voices of opposition is her own mother. Meanwhile medicine cat apprentice Frostpaw scrambles to help River Clan stay afloat under the watchful eye of a second Tigerstar, and the shadow of growing conflict looms over them all This seventh epic Warriors series is full of action, intrigue, and adventurea perfect introduction for new readers and for long-time fans eager to discover what unfolds after the events of The Broken Code.