"I understand," replied Lauriston. "I'll show or tell him anything he likes. I've told you the plain truth."

"Go with him now," directed the inspector; "you know what to do,
Ayscough!"

Half an hour later, when the dead man had been carried to his room, and the shop and house had been closed, Melky Rubinstein, who had come in while the police were still there, and had remained when they had gone, stood talking to Zillah in the upstairs sitting-room. Melky was unusually grave: Zillah had already gathered that the police had some suspicion about Lauriston.

"I'll go round there and see what the detective fellow's doing with him," said Melky. "I ain't got no suspicion about him—not me! But—it's an awkward position—and them rings, too! Now, if he'd only ha' shown 'em to me, first, Zillah—see?"

"Do go, Melky!" urged Zillah tearfully. "Of course, he'd nothing to do with it. Oh!—I wish I'd never gone out!"

Melky went downstairs. He paused for a moment in the little parlour, glancing meditatively at the place where the old man had been found dead. And suddenly his keen eyes saw an object which lay close to the fender, half hidden by a tassel of the hearthrug, and he stooped and picked it up—a solitaire stud, made of platinum, and ornamented with a curious device.

CHAPTER FIVE

THE TWO LETTERS

Once outside the shop, Lauriston turned sharply on the detective.

"Look here!" he said. "I wish you'd just tell me the truth. Am I suspected? Am I—in some way or other—in custody?"