Three novellas featuring the cats of the Warrior series. Spottedleaf's heart : young apprentice Spottedpaw is determined to become a warrior...until she realizes that to save her Clan, she must become its next medicine cat. Pinestar's choice : discover what drove Pinestar, once leader of ThunderClan, to abandon the warrior code, betray his Clan, and become a kittypet. Thunderstar's echo : in the earliest days of ThunderClan, its first leader faces down a new threat and forges a new tradition for all the warrior Clans.

Spottedleaf's heart -- Pinestar's choice -- Thunderstar's echo.