Mosskit, a dark brown tabby she-cat with green eyes, hooked up a ball of moss with her claw and hurled it at her sister, Rainkit. Rainkit, a black tabby she-cat with green eyes squealed and leaped on it. She battered at it with her front paws. Mosskit stared in surprise at the torn mossball. "I guess we'll have to get another one..." Rainkit nodded. "Sorry. I'll get it. Rainkit hopped away and grabbed another pawfull of moss, but her sister had gone into the nursery, where her mother Hollystem lay. Hollystem lifted her head drowsily and looked at Rainkit. "You should get some sleep; your apprentice...