Her smile grew.
"I didn't know what I should find in here. I couldn't afford to take chances."
"But I left you in New York," he went on uncertainly. "How did you come? Why are you here?"
"No time for explanations now," she answered quickly. "We must get out of here."
He recalled the patter of hastening feet, the soft closing of the door. In the growing light he saw its tin-sheeted face flush with the wall.
"The door has been shut," he said. "I'm afraid—locked. Why did you light that fire?"
She ran across, grasped the knob, then commenced to beat with her fists at the tin. Suddenly she stopped. Her shoulders drooped.
"No use," she whispered. "She must have come in. She won't open now."
Garth hurried to her side.
"I don't understand," he said, "but it's evident we are caught here, and that fire has been fixed—a signal?"