“I will be going out for a few hours this afternoon, Colonel,” he explained, regarding the man before him with his habitual unwinking stare. “I am taking Lim with me, and I think it will be best for you to remain in your quarters.”

Although his words had taken the form of a request, there was back of them the force of a command. The white man eyed him suspiciously, but presently nodded.

Some time later he heard the whir of a starting motor. Lim had brought him his luncheon, and now Knight figured the house would be deserted. He smiled. This would be his opportunity to look around a bit. The instincts of the crook were strong within him, and he was immensely curious with regard to the house of Ah Wing.

He waited an hour after he had heard the car leave the garage—from the back window he had caught a glimpse of it: a gray roadster of moderate size and power. Now he felt sure that he would not be interrupted.

Crossing to the door of the conservatory, he passed into it. Along one side were orchids, Colonel Knight realized vaguely that the collection must be priceless. Many of them were growing in diminutive glass rooms, upon whose walls he saw heavy drops of moisture.

One pale green blossom near him had weird markings in white and yellow, which gave it a disturbing resemblance to a grinning human face. The man thrust out a curious finger and touched it: the blossom drew itself together like a conscious thing, and he became aware of a sickening perfume which in an instant turned him dizzy.

He shrank back and continued his journey. The concrete floor narrowed, and at his left he saw a lily pond, upon whose surface great white blossoms showed their buttery yellow centers. Between the pads and blossoms of the lilies the water showed, deep and dark.

Colonel Knight leaned forward to peer into the pool; then, with a choking cry he staggered back, his face drained of blood: an ugly black snout had shot up out of the murky depths, and a huge lizard, with short, powerful forelegs armed with long claws, stared hungrily up at him.

He found his appetite for exploration losing its edge. He was tempted to turn back, but he wanted to settle one point: in case he should want to leave this house, how could he best do it? The windows were securely barred, but there must be plenty of doors.