Jane's reply was an impudent double-laugh. She was examining the different things on the bill-board, and hopping sillily from foot to foot.

Gwendolyn tugged gently at a coat-tail. "Can't we run now?" she asked; "and hide?"

Boom-er-oom-er-oom!

"Sh!" warned the Man-Who-Makes-Faces, not stirring. "What was that!"

"I don't know."

Both held their breath. And Gwendolyn took a more firm hold of the lip-case.

After a moment the little old gentleman began to speak very low: "We shan't be able to steal away. She's watching us out of the back of her head!"

"Yes. I can see 'em shine!"

"I believe that when she rolled her eyes from one face to the other it made that rumbley sound."

"Scares me," whispered Gwendolyn.