They went in together. Peters had lit his pipe and was smoking placidly with no concern for the thing on the floor, but Martin stood, still staring down. There was a kind of wonder in his face, and with it a strange thankfulness. He was like a man who straightens his shoulders after they have been crushed by some killing load.

“Martin,” said Derrick crisply, “Sergeant Burke is going to make a search of the cottage.”

“That’s all right so far as I’m concerned, sir, but there isn’t anything here except what any one can see.”

There was that in his apparent readiness which gave his master a feeling of solid relief. The latter found himself glad to admit that for months he had been on the wrong trail. There were matters still to be explained, deliberate lies to be accounted for, that secret search of the study to be acknowledged and justified; but all this, thought Derrick, was mysteriously involved with the potent thing that now dragged at his pocket, and when the light did come no corner would be left obscure. He remembered, too, that at times Martin had looked like an honest man. And did villains ever love roses like this gardener of his?

“Martin,” he said, “you’d better leave the sergeant alone while he’s making this search; he won’t need you.”

The man nodded with the air of one who has nothing to fear, cast another contented glance at the peddler’s body, and went out. They watched him cross the drive, hesitate a moment as though deliberating which way to turn, then stand, his hands deep in his pockets, staring down the road. Again Derrick felt reassured.

“Sergeant, I’m greatly relieved about that chap, even though I did bark up the wrong tree.”

Burke rubbed his big palms together. “Well, sir, it was a fortunate kind of bark just the same.”

“So it’s turned out. Now while you’re making this search could the constable go up and stay in front of the house? Also, he might just assure Miss Derrick that everything is quite all right. She’ll be more convinced if it doesn’t come from me.”

Peters got his orders, and the two were alone. Burke gave a broad grin. The idea of promotion had flashed into his mind. Then he, too, indulged in a long stare at what had been Blunt.