Transport

Knight Bus

The Knight Bus is emergency transport for the stranded witch or wizard. It appears when summoned, leaps through traffic, and charges by distance. Stan Shunpike conducts it. Harry boards it after he inflates Aunt Marge, and it takes him to the Leaky Cauldron.

First mention

Harry Potter and the Prisoner of Azkaban

Chapter: The Knight Bus

Harry accidentally flags the bus on a dark street after he leaves the Dursleys, and he rides it to London.

Also in

Harry Potter and the Order of the Phoenix