"Gas explosion," grunted Ernie.

"An' now 'e's out," said Stan, examining the newspaper picture of Black's gaunt face again. "Never been a breakout from Azkaban before, 'as there, Ern? Beats me 'ow 'e did it. Frightenin', eh? Mind, I don't fancy 'is chances against them Azkaban guards, eh, Ern?"

Ernie suddenly shivered.

"Talk about summat else, Stan, there's a good lad. Them Azkaban guards give me the collywobbles."

Stan put the paper away reluctantly, and Harry leaned against the window of the Knight Bus, feeling worse than ever. He couldn't help imagining what Stan might be telling his passengers in a few nights' time.

"'Ear about that 'Arry Potter? Blew up 'is aunt! We 'ad 'im 'ere on the Knight Bus, di'n't we, Ern? 'E was tryin' I to run for it...."

He, Harry, had broken wizard law just like Sirius Black. Was inflating Aunt Marge bad enough to land him in Azkaban? Harry didn't know anything about the wizard prison, though everyone he'd ever heard speak of it did so in the same fearful tone. Hagrid, the Hogwarts gamekeeper, had spent two months there only last year. Harry wouldn't soon forget the look of terror on Hagrid's face when he had been told where he was going, and Hagrid was one of the bravest people Harry knew.

The Knight Bus rolled through the darkness, scattering bushes and wastebaskets, telephone booths and trees, and Harry lay, restless and miserable, on his feather bed. After a while, Stan remembered that Harry had paid for hot chocolate, but poured it all over Harry's pillow when
the bus moved abruptly from Anglesea to Aberdeen. One by one, wizards and witches in dressing gowns and slippers descended from the upper floors to leave the bus. They all looked very pleased to go.

Finally, Harry was the only passenger left.

"Right then, Neville," said Stan, clapping his hands, where abouts in London?"