later, a gigantic pair of wheels and headlights screeched to a halt exactly where Harry had just been lying. They belonged, as Harry saw when he raised his head, to a triple-decker, violently purple bus, which had appeared out of thin air. Gold lettering over the windshield spelled The Knight Bus.

For a Split second, Harry wondered if he had been knocked silly by his fall. Then a conductor in a purple uniform leapt out of the bus and began to speak loudly to the night.

"Welcome to the Knight Bus, emergency transport for the stranded witch or wizard. just stick out your wand hand, step on board) and we can take you anywhere you want to go. My name is Stan Shunpike, and I will be your conductor this eve --"

The conductor stopped abruptly. He had just caught sight of "Harry, who was still sitting on the ground. Harry snatched up his wand again and scrambled to his feet. Close up, he saw that Stan Shunpike was only a few years older than he was, eighteen or nineteen at most, with large, protruding ears and quite a few pimples.

"What were you doin' down there?" said Stan, dropping his professional manner.

"Fell over," said Harry.
"'Choo fall over for?" sniggered Stan.

"I didn't do it on purpose," said Harry, annoyed. One of the knees in his jeans was torn, and the hand he had thrown out to break his fall was bleeding. He suddenly remembered why he had fallen over and turned around quickly to stare at the alleyway between the garage and fence. The Knight Bus's headlamps were flooding it with light, and it was empty.

"'Choo lookin' at?" said Stan.

"There was a big black thing," said Harry, pointing uncertainly into the gap. "Like a dog... but massive..."