Then, like a huge kite, the big-bellied sail raced off across the lake, taking the reckless pair almost instantly out of earshot.

[CHAPTER VIII—THE VILLAGE ON THE ICE]

The wild plunge of the scooter across the lake carried it, before a wind-squall, far out of hearing of Ruth Kenway’s voice. Yet she shouted long and loud after her sister. Luke pulled her back into her seat when she would have stood up to watch the careening scooter.

“They are in no danger,” he urged. “Take it easy, Ruth.”

“Why, they must be in peril! Did you see her—Agnes—up in the air?”

“Well, she’s down again all right now, Ruthie,” said Cecile Shepard soothingly.

“Oh, if I had only known!”

“Known what?” asked Luke, inclined to grin if the truth was told.

“That the small boat would sail like that. Why, it is worse than a racing automobile!”

“Faster, I guess. Almost as fast as a motorcycle,” Luke agreed. “But Neale’s managed one of those things before. He told me all about it.”