"Well, can't we break down the door to the tower?" asked Dorothy.

"Perhaps we could, but there are six other doors after that one before my magic workroom can be reached. And all are protected by my own magic!" groaned the Wizard.

"Are there no other magic tools that can be used?" inquired Shaggy.

"None," said the Wizard despondently. "Ozma took Dorothy's Magic Belt with her when she went to visit Glinda, so we are helpless for the moment."

Twiffle had been listening with great interest. Now he said: "Tell me, was the little man who suddenly appeared quite fat and bald save for a fringe of white hair? And did he have blue eyes and a sort of cherry-like nose?"

"Why, yes, that describes him quite well, from the glimpse I had of him," said the Wizard thoughtfully.

"I think," Twiffle went on quietly, "that if you had had the opportunity to observe him more closely, you would have seen that he wore on his wrist Ozma's Magic Compass!"