“This is what he was stirring to-day,” he said, “Wonder what this changes folks into.”

“Prob’ly depends what sort of a spell you say when you stir it,” said Joan.

“Well, let’s try it,” said William.

“What’ll we turn him into?” said Ginger.

“A donkey,” suggested William.

“Well, who’ll do it?”

“Let me try,” said Joan who had a certain prestige as originator of the now generally accepted magician theory.

Ginger handed her the crucible. “I think,” said Joan importantly, “that I ought to have a circle of chalk drawn round me.”

They couldn’t find any chalk so they made a little circle of test tubes around her and watched her with interest. Joan shut her eyes, stirred up the mixture in the crucible and chanted:

“Turn into a donkey,