"You still have a chance, Amy," she urged, "but you must hurry."

"Thank you for everything you have done to help me," the girl murmured gratefully, moving to the window which Penny had opened for her. "I'll never forget it."

"I've done nothing," Penny replied, assisting her to climb over the sill. "Can you manage both bags?"

"Yes, I think so."

"Will you let me know the address of your new rooming house, Amy?"

"Yes, of course. I have no idea now where I'll go. I may not escape at all."

"Keep to the alley," Penny advised. "Good-bye and good luck."

She stood watching from the window while Amy descended the fire escape to enter the alley. The girl waved her hand reassuringly and vanished.

Penny closed the window and straightened up the room so that there would be no appearance of sudden flight. She wondered if she had done right to help Amy escape the police.

She felt troubled because the girl had failed to explain why she had written to Mr. Hoges. Yet the letter provided Penny with a valuable clue.