The house presented an uncommunicative front. They climbed the steps. No lights showed in the hall. The windows appeared to be shuttered. The inspector pulled the old-fashioned bell handle. After an undisturbed wait he tried again.

"Guess we haven't got the combination, Chief," Garth whispered.

"No time for experiments," the inspector said. He put his shoulder to the door.

"Give a hand here, boys. Bring that ax."

The lock snapped under their assault. They stumbled through into the vestibule. Garth choked. He was aware of fine particles of dust in his nose and his throat. The inspector had been similarly affected.

"Filthy lot!" he sneered. "One more door."

They attacked the inner door. They burst through into a black hallway. The dust rose in clouds. The inspector snapped his flashlight and fell back with an exclamation, disappointed and surprised.

The light shone on bare floors and walls. Its power was radically diminished by the long accumulated dust their entrance had disturbed. As far as the first floor was concerned they stood in an empty house.

Manford sneered.

"A fine plan of yours, inspector!"