“Certainly I know it. It is just what I always wanted,” she replied.

Miss Thane came along the passage at this moment and put an end to their tête-à-tête. She quite agreed with Eustacie that Ludovic must lock his door. She had every intention, she said, of locking her own. She bore Eustacie off to her room, stayed with her till she was safely tucked up in bed, turned the lamp down, made up the fire, and went away wondering whether there really might be something to fear, or whether they had allowed their fancy to run riot. This problem kept her awake for some time, but after a couple of hours spent in straining her ears to catch the sound of a footfall she did at last fall asleep, lulled by the monotonous rise and fall of her brother’s snores, drifting to her ears from across the passage.

At one o’clock these ceased abruptly. The moon had reached a point in the heavens from which its rays were able to find out a chink between the blinds over Sir Hugh’s window. A sliver of silver light stole across his face. Its baleful influence was instantly felt. Sir Hugh awoke.

He knew at once what had roused him, and with a muttered curse, got up out of bed and stalked over to the window. A tug at the blind failed to put matters right, and Sir Hugh, blinking with sleep, perceived that a fold of the chintz had been caught in the hinge when the casement was shut. “Damned carelessness!” he said severely, and opened the window to release the blind.

There was a smart wind blowing; a sudden gust tore the casement out of his slack hold, and flung it wide. He leaned out to pull it to again, and as he did so noticed that one of the windows in the coffee-room directly beneath his bedchamber was also standing wide. It seemed to him unusual and undesirable that windows should be left open all night, and after regarding it for a moment or two with slightly somnolent disapproval, he drew in his head, turned up the wick of the lamp that stood by his bed, and lit a candle at its flame. Yawning, he groped his way into his dressing-gown, and then, picking up the candlestick and treading softly for fear of waking the rest of the household, sallied forth to rectify Nye’s omission.

He went carefully down the steep stairs, shading the flame of the candle from the draught. As he reached the bend in the staircase, and rounded it, he caught the glow of a light, suddenly extinguished, and knew there was someone in the coffee-room.

Sir Hugh might be of a naturally indolent disposition, but he had a rooted objection to fellows nefariously creeping about the house. He reached the bottom of the stairs with most surprising celerity, and, holding up the candle, looked keenly round the room.

A figure loomed up for an instant out of the darkness; he had a glimpse of a man with a mask over his face, and a dagger in his hand, and the next moment the candle was struck from his hold.

Sir Hugh launched himself forward, grappling with the unknown marauder. His right hand encountered something that felt like a neckcloth, and grasped it, just as the hilt of the dagger crashed down upon his shoulder, missing his head by a hair’s breadth. Before the unknown could strike again he had grabbed at the dagger hand, and found it, twisting it unmercifully. The dagger fell; and Sir Hugh’s grip slackened a little. The masked man, putting forth every ounce of strength, tore himself free, and made a dart for the window. Sir Hugh plunged after him, tripped over a stool, and came down on his hands and knees with a crash. The intruder was visible for a brief moment in the shaft of moonlight; before Sir Hugh could pick himself up he had vanished through the window.

Chapter Thirteen