 Although he doesn't realize, some of the dogs (Patchie, Rover, Redears, and Bruce) are his siblings.One day, he meets Yeff, a cold dog (later revealed to the reader as his father), who has strange, feathery legs, yellow eyes, and is the only one besides Patchie and Sirius to hear the calls of the Master.He runs off after telling Sirius that "only those who runs with [the cold dogs] and share [their] duties are allowed to know" about the Master.