Erin Hunter 
Warriors: A Vision of Shadows #2: Thunder and Shadow [EPUB ebook] 

Erin Hunters #1 bestselling Warriors series continues with the second book in the A Vision of Shadows arc.Nearly a moon has passed since Alderpaw returned from his journey to Sky Clans gorge, where he found the territory taken over by rogues. Now the same vicious cats that drove out Sky Clan have traced Alderpaws path back to the lake and Shadow Clan may be the next to fall.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.