Her terrified glance sought Mart's face. "He'd been on the beach!" she said in a defiant tone.

Mart continued to look at her, but there was no expression in his face. He still wore his peculiar affable smile.

"Where did these tracks come from, on the floor?"

Swift horror fastened itself on Mrs. Brenner.

"What's that to you?" she flared.

She heard her husband's hypocritical and soothing tones. "Now, now, Olga! That ain't the way to talk to these gentlemen. Tell them who made these tracks."

"You did!" she cried. All about her she could feel the smoothness of a falling trap.

Mart smiled still more broadly.

"Look here, Olga, don't get so warm over it. You're nervous now.
Tell the gentlemen who made those tracks."

She turned to Munn desperately. "What do you want to know for?" she asked him.