“Ah!” Annette appeared to stumble over something. She stooped. “Mon Dieu, voilà la clef!”

The German snatched it from her. He unlocked the door. Conrad stumbled out, swearing.

“Where is he? Have you got him?”

“We have seen no one,” said the German sharply. His face paled. “Who do you mean?”

Conrad gave vent to another oath.

“He’s got away.”

“Impossible. He would have passed us.”

At that moment, with an ecstatic smile Tommy pulled the string. A crash of crockery came from the attic above. In a trice the men were pushing each other up the rickety ladder and had disappeared into the darkness above.

Quick as a flash Tommy leapt from his hiding-place and dashed down the stairs, pulling the girl with him. There was no one in the hall. He fumbled over the bolts and chain. At last they yielded, the door swung open. He turned. Annette had disappeared.

Tommy stood spell-bound. Had she run upstairs again? What madness possessed her! He fumed with impatience, but he stood his ground. He would not go without her.