Foremost, of course, both in appearance and in guilt, was the formidable Boss.  Harraway, the secretary, was a lean, bitter man with a long, scraggy neck and nervous, jerky limbs, a man of incorruptible fidelity where the finances of the order were concerned, and with no notion of justice or honesty to anyone beyond.  The treasurer, Carter, was a middle-aged man, with an impassive, rather sulky expression, and a yellow parchment skin.  He was a capable organizer, and the actual details of nearly every outrage had sprung from his plotting brain.  The two Willabys were men of action, tall, lithe young fellows with determined faces, while their companion, Tiger Cormac, a heavy, dark youth, was feared even by his own comrades for the ferocity of his disposition.  These were the men who assembled that night under the roof of McMurdo for the killing of the Pinkerton detective.

Their host had placed whisky upon the table, and they had hastened to prime themselves for the work before them.  Baldwin and Cormac were already half-drunk, and the liquor had brought out all their ferocity.  Cormac placed his hands on the stove for an instant—­it had been lighted, for the nights were still cold.

“That will do,” said he, with an oath.

“Ay,” said Baldwin, catching his meaning.  “If he is strapped to that, we will have the truth out of him.”

“We’ll have the truth out of him, never fear,” said McMurdo.  He had nerves of steel, this man; for though the whole weight of the affair was on him his manner was as cool and unconcerned as ever.  The others marked it and applauded.

“You are the one to handle him,” said the Boss approvingly.  “Not a warning will he get till your hand is on his throat.  It’s a pity there are no shutters to your windows.”

McMurdo went from one to the other and drew the curtains tighter.  “Sure no one can spy upon us now.  It’s close upon the hour.”

“Maybe he won’t come.  Maybe he’ll get a sniff of danger,” said the secretary.

“He’ll come, never fear,” McMurdo answered.  “He is as eager to come as you can be to see him.  Hark to that!”

They all sat like wax figures, some with their glasses arrested halfway to their lips.  Three loud knocks had sounded at the door.

“Hush!” McMurdo raised his hand in caution.  An exulting glance went round the circle, and hands were laid upon their weapons.

“Not a sound, for your lives!” McMurdo whispered, as he went from the room, closing the door carefully behind him.

With strained ears the murderers waited.  They counted the steps of their comrade down the passage.  Then they heard him open the outer door.  There were a few words as of greeting.  Then they were aware of a strange step inside and of an unfamiliar voice.  An instant later came the slam of the door and the turning of the key in the lock.  Their prey was safe within the trap.  Tiger Cormac laughed horribly, and Boss McGinty clapped his great hand across his mouth.