“Well, I still think he might be jus’ an ornery sort of man doin’ ornery chemistry,” said Henry.

“What about the dead body, then?” said Ginger.

“An’ what about frogs an’ things shut up in bottles an’ things?” said William.

Then Joan spoke.

“He’s a wizard,” she said, “of course he’s a wizard.”

William treated this suggestion with derision.

“A wizard,” he said contemptuously, “Soppy fairy-tale stuff! Course he’s not. There aren’t any!”

But Joan was not crushed.

“There are, William,” she said solemnly, “I know there are.”

How d’you know there are!” said William incredulously.