The door, which he had left open, had swung shut. Again he fitted the master-key, entered, paused on the threshold, looked around nervously, his nostrils suddenly filled with a puff of perfume.

And there on the table by the bed he saw a glass bowl filled with a mass of Chinese orchids—great odorous clusters of orange and snow-white bloom that saturated all the room with their freshening scent.

So astounded was he that he stood stock still, one hand still on the door-knob; then in a trice he had closed and locked the door from inside.

Somebody was in that apartment. There could be no doubt about it. He dropped his right hand into his overcoat pocket and took hold of his automatic pistol.

For ten minutes he stood so, listening, peering about the room from bed to curtains, and out into the parlour. There was not a sound in the place. Nothing stirred.

Now, grasping his pistol but not drawing it, he began another stealthy tour of the apartment, exploring every nook and cranny. And, at the end, had discovered nothing new.

When at length he realised that, as far as he could discover, there was not a living thing in the place excepting himself, a very faint chill grew along his neck and shoulders, and he caught his breath suddenly, deeply.

He had come back to the bedroom, now. The perfume of the orchids saturated the still air.

And, as he stood staring at them, all of a sudden he saw, where their twisted stalks rested in the transparent bowl of water, something moving—something brilliant as a live ember gliding out from among the mass of submerged stems—a living fish glowing in scarlet hues and winnowing the water with grotesquely trailing fins as delicate as filaments of scarlet lace.

To and fro swam the fish among the maze of orchid stalks. Even its eyes were hot and red as molten rubies; and as its crimson gills swelled and relaxed and swelled, tints of cherry-fire waxed and waned over its fat and glowing body.