"It does. Why was Sinclair Spencer gallivanting about this house in his stocking feet?"

Foster played with his watch chain. "Upon my word, I don't know," he replied at last.

"Well, you might hazard a guess." But Foster's only answer was a negative shake of his head. "Pshaw! use your imagination—suppose Spencer was unduly inquisitive about Winslow's invention—"

"Stop, Kiametia!" Foster held up a warning hand. "You are treading on dangerous ground. Be sure of your facts before suggesting that a man of Winslow's known integrity is involved in—murder."

"How you men do jump at conclusions," grumbled Miss Kiametia. "I believe Julie, the maid, killed Spencer because she found him snooping around where he had no business to be."

"Why should the maid play watchdog?"

"Because she's French, stupid; and I believe, firmly believe, Sinclair
Spencer was in the pay of Germany. Both he and the maid were after
Winslow's invention, one to steal, the other to protect."

"You have astonishing theories." Foster leaned back and regarded her in silence, then resumed, "Suppose you give me an exact account of what transpired this morning."

He listened with rapt attention to the spinster's graphic description of the finding of Kathleen and Sinclair Spencer in the elevator.

"Strange, very strange," he muttered, as she brought the recital to an end. "How did Kathleen come to enter the elevator without seeing its occupant?"