Erin Hunter 
Warriors: A Vision of Shadows #1: The Apprentice’s Quest [EPUB ebook] 

A new adventure begins in Erin Hunters #1 bestselling Warriors series For many moons, Thunder Clan, Shadow Clan, River Clan, and Wind Clan have lived in peace in their territories around the lake. But now they must decipher a mysterious prophecya message that will send one young medicine cat apprentice on a quest to determine the fate of all the warrior Clans.Full of epic adventure and thrilling intrigue, the beginning of this fifth Warriors series is the perfect introduction for readers new to the Warriors world. And for dedicated fans, its a long-awaited return to the era of Bramblestars Thunder Clan, after the events of Omen of the Stars.