The least thing was enough to alarm us, standing where we stood, and the constable's face was full of suspicion.

Who had sought an entrance?
It could be no trained and practised housebreaker; he would have had better tools.
But now our attention was again diverted.

Rudolf stopped short.

He still looked for a moment at the sky, then his glance dropped to the ground at his feet.

A second later he jerked his head--it was bare, and I saw the dark red hair stir with the movement--like a man who has settled something which caused him a puzzle.