Erin Hunter 
Darkest Hour 

Step into the wild world of the Warrior Cats – wild cat excitement, epic battles and tribal rivalry! Myths and legends surround the four cat clans, in this thrilling feline fantasy adventure.The thrilling saga of battling cat clans concludes in the sixth book of this fantastic feline fantasy.Thunder Clan’s darkest hour is upon them, as Tigerstar’s quest for power plunges all the Clans into the most terrible danger any cat has ever faced. Fireheart prepares to pit his wits against his arch-enemy, but the real danger he must face is even more terrible.The time has come for phrophecies to unfold and for heroes to rise…