"What door?"

"That door yonder—the street door."

All our eyes turned in the direction indicated.

"John often came home at half-past two from the Yard," continued Weymouth; "so we naturally thought poor Mary was wandering in her mind. But last night—and it's not to be wondered at—my wife couldn't sleep, and she was wide awake at half-past two."

"Well?"

Nayland Smith was standing before him, alert, bright-eyed.

"She heard it, too!"

The sun was streaming into the cozy little sitting-room; but I will confess that Weymouth's words chilled me uncannily. Karamaneh laid her hand upon mine, in a quaint, childish fashion peculiarly her own. Her hand was cold, but its touch thrilled me. For Karamaneh was not a child, but a rarely beautiful girl—a pearl of the East such as many a monarch has fought for.

"What then?" asked Smith.

"She was afraid to move—afraid to look from the window!"