"He's a very light sleeper as a rule," replied Allerdyke. He stood listening for the sound of some movement in the room: "Knock again," he said, when a minute had passed without response on the part of the occupant. "Make it a bit louder."

The night-porter, with evident unwillingness, repeated his summons, this time loud enough to wake any ordinary sound sleeper. But no sound came from within the room, and after a third and much louder thumping at the door, Allerdyke grew impatient and suspicious.

"This is queer!" he growled. "My cousin's one of the lightest sleepers I ever knew. If he's in there, there's something wrong. Look here! you'll have to open that door. Haven't you got a key?"

"Key'll be inside, sir," replied the night-porter. "But there's a master-key to all these doors in the office. Shall I fetch it, then?"

"Do!" said Allerdyke, curtly. He began to walk up and down the corridor when the man had hurried away, wondering what this soundness of sleep in his cousin meant. James Allerdyke was not a man who took either drink or drugs, and Marshall's experience of him was that the least sound awoke him.

"Queer!" he repeated as he marched up and down. "Perhaps he's not—"

The quiet opening of a door close by made him lift his eyes from the carpet. In the dim light he saw a man looking out upon him—a man of an unusually thick crop of hair and with a huge beard. He stared at Allerdyke half angrily, half sulkily; then he closed his door as quietly as he had opened it. And Allerdyke, turning back to his cousin's room, mechanically laid his hand on the knob and screwed it round.

The door was open.

Allerdyke drew a sharp breath as he crossed the threshold. He had stayed in that hotel often, and he knew where the switch of the electric light should be. He lifted a hand, found the switch, and turned the light on. And as it flooded the room, he pulled himself up to a tense rigidity. There, sitting fully dressed in an easy chair, against which his head was thrown back, was his cousin—unmistakably dead.

CHAPTER II