When all this was finished, he drew back with a sense of pardonable pride in his own deft handiwork.

Mon Dieu! it is Stepan himself,” he cried enthusiastically.

Corsini took a survey of himself in a small, cracked mirror that hung in the shabby sitting-room. He cast a further glance at the inert form lying in the corner. Yes, in these rough clothes, with his face and hands stained, he could well pass for Stepan himself in a dim and doubtful light.

“It is just about time,” said Ivan, when these preparations had been completed. “My friend Paul will conduct you to the villa. There are seven windows on the ground floor, built very high. Underneath the fourth window the blank wall is of wood. You can feel it. There is a small door with a keyhole in the centre. Here is the key. Paul knows it well; he will lead you to it.”

The small slouching man led Corsini to the villa of Madame Quéro. The four silent men followed in their wake. Arrived at the villa, Corsini slipped easily into the small vestibule to await the arrival of the conspirators.

“You are well in time, Monsieur,” whispered the man, Paul, as he took his departure. “Do not answer the bell too quickly; watch its vibration before you respond. You must remember that Stepan is deaf. You will excuse me for giving you the hint.”

Paul departed. The four guards scattered themselves in various directions, but always ready to assemble together if danger threatened the man they were deputed to watch.

Corsini was alone in the little vestibule. He drew aside the heavy velvet curtains and peered into the inner room, a rather spacious chamber. This was very dimly lighted, too. But evidently Madame Quéro had given her instructions. A cold supper was laid out on the long table, with several bottles of champagne. Upstairs, no doubt, she was lying between life and death, no longer able to take part in these festivities.

The bell vibrated. Nello opened the door and made a low obeisance. Two men came through the narrow doorway. He recognised them at once: they were two highly distinguished noblemen of the Russian Empire. He had seen them several times at the Opera.

The bell vibrated again and again. Five more men passed through, and last came the tall, commanding figure of Zouroff.