Title: Mapleshade's Vengeance
Description: In this novella from the world of Erin Hunter's #1 nationally bestselling Warriors series, discover the sinister past of one of the most treacherous cats in the Dark Forest. 

Long before she troubled the dreams of Crookedstar or Tigerclaw, Mapleshade was a warrior of ThunderClan. But then the Clans cast her out as a traitor—and she vowed to seek her revenge...
Subjects: Cats, Fantasy, Fantasy Fiction, Feral Cats, Fiction, Juvenile Fiction