“What’s that?” said Arthur, startled.

“What’s what?” Frank inquired, innocently.

“That noise—hear it?”—Arthur paused to listen—“sounds like a person or dog scratching to get in.”

“Oh, it’s your imagination, I guess.”

“By the way, Art, did you take the boot off ‘Step Lively’?”

“Sure!” he answered.

“I’ll bet you didn’t; too much of a hurry to get out of the wind and aboard.”

“I know I did—at least I think I did.”

“Gee, that’s a queer noise,” Kenneth interrupted the inquiry to say. The wind made a noise like one in torment, and the light flickered again.

“I’ll give you two dollars if you go out and make sure. It’s up to you, and don’t forget the week’s dishwashing if we find the boot on in the morning.”