Chapter 17 POLYCARP AND HAWKE'S MAN

Then it was that he heard a noise, something between scratching and fumbling, on the further side of the front-door, in the main corridor of the flats. He could see through the ground glass over the door that the corridor was lighted as usual.

He thought: 'Someone is breaking the seal on that door!' And his next idea was: 'Since the seal is bein