Even after he came back and would sidle up to my bedside in his old fawning style, I couldn't bring myself to take him seriously, and I was only amused."

"He came to your bedside!" exclaimed Glynn.

"Yes," replied Thresk, and he laughed at the recollection. "He came with his humble smirk, and pottered about the room as if he were my nurse. I put out my tongue at him, and told him he was dead and done for, and that he had better not meddle with the bottles on my table.

Yes, he amused me. What a fool I was! I thought no one else saw him.

That was my first mistake. I thought he was helpless.... That was my second."

Thresk got up from his chair, and, standing over the fireplace, knocked the ash off his cigar.

"Do you remember a great Danish boar-hound I used to have?" he asked.

"Yes," replied Glynn, puzzled by the sudden change of subject. "But what has the boar-hound to do with your story?"

"A good deal," said Thresk. "I was very fond of that dog."

"The dog was fond of you," said Glynn.

"Yes. Remember that!" Thresk cried suddenly. "For it's true." Then he relapsed again into a quiet, level voice.

"It took me some time to get well. I was moved up here. It was the one place where I wanted to be. But I wasn't used to sitting round and doing nothing. So the time of my convalescence hung pretty heavily, and, casting about for some way of amusing myself, I wondered whether I could teach the dog to see Channing as I saw him. I tried. Whenever I saw Channing come in at the door, I used to call the dog to my side and point Channing out to him with my finger as Channing moved about the room."

Thresk sat down in a chair opposite to Glynn, and with a singular alertness began to act over again the scenes which had taken place in his sick room upstairs.

"I used to say, 'Hst! Hst!' 'There! Do you see? By the window!' or if Channing moved towards Linda I would turn the dog's head and make his eyes follow him across the room. At first the dog saw nothing. Then he began to avoid me, to slink away with his tail between his legs, to growl. He was frightened. Yes, he was frightened!" And Thresk nodded his head in a quick, interested way.

"He was frightened of you," cried Glynn, "and I don't wonder."

For even to him there was something uncanny and impish in Thresk's quick movements and vivid gestures.

"Wait a bit," said Thresk. "He was frightened, but not of me. He saw Channing. His hair bristled under my fingers as I pointed the fellow out. I had to keep one hand on his neck, you see, to keep him by me.

He began to yelp in a queer, panicky way, and tremble--a man in a fever couldn't tremble and shake any more than that dog did. And then one day, when we were alone together, the dog and I and Channing--the dog sprang at my throat."

"That's how you were wounded!" cried Glynn, leaping from his sofa. He stood staring in horror at Thresk. "I wonder the dog didn't kill you."

"He very nearly did," said Thresk. "Oh, very nearly."

"You had frightened him out of his wits."

Thresk laughed contemptuously.

"That's the obvious explanation, of course," he said. "But it's not the true one. I have been living amongst the subtleties of life. I know about things now. The dog sprang at me because--" He stopped and glanced uneasily about the room. When he raised his face again, there was a look upon it which Glynn had not seen there before--a look of sudden terror. He leaned forward that he might be the nearer to Glynn, and his voice sank to a whisper--"well, because Channing set him on to me."

It was no doubt less the statement itself than the crafty look which accompanied it, and the whisper which uttered it, that shocked Glynn.

But he was shocked. There came upon him--yes, even upon him, the sane, prosaic Glynn--a sudden doubt whether, after all, Thresk was mad. It occurred to him as a possibility that Thresk was speaking the mere, bare truth. Suppose that it were the truth! Suppose that Channing were here! In this room! Glynn felt the flesh creep upon his bones.

"Ah, you are beginning to understand," said Thresk, watching his companion. "You are beginning to get frightened, too." And he nodded his head in comprehension. "I used not to know what fear meant. But I knew the meaning well enough as soon as I had guessed why the dog sprang at my throat. For I realised my helplessness."

Throughout their conversation Glynn had been perpetually puzzled by something unexpected in Thresk's conclusions. He followed his reasoning up to a point, and then came a word which left him at a loss. Thresk's fear he understood. But why the sense of helplessness?

And he asked for an explanation.

"Because I had no weapons to fight Channing with," Thresk replied. "I could cope with the living man and win every time. But against the dead man I was helpless. I couldn't hurt him. I couldn't even come to grips with him. I had just to sit by and make room. And that's what I have been doing ever since. I have been sitting by and watching--without a single resource, without a single opportunity of a counterstroke. Oh, I had my time--when Channing was alive. But upon my word, he has the best of it. Here I sit without raising a hand while he recaptures Linda."

"There you are wrong," cried Glynn, seizing gladly, in the midst of these subtleties, upon some fact of which he felt sure. "Your wife is yours. There has been no recapture. Besides, she doesn't believe that Channing is here."

Thresk laughed.

"Do you think she would tell me if she did?" he asked. "No."

He rose from his chair and, walking to the window, thrust back the curtains and looked out. So he stood for the s.p.a.ce of a minute. Then he came back and, looking fixedly at Glynn, said with an air of extraordinary cunning:

"But I have a plan. Yes, I have a plan. I shall get on level terms with Mr. Channing again one of these fine days, and then I'll prove to him for a second time which of us two is the better man."

He made a sign to Glynn, and looked towards the door. It was already opening. He advanced to it as Linda came into the room.

"You have come back, Linda! I have been talking to Glynn at such a rate that he hasn't been able to get a word in edgeways," he said, with a swift change to a gaiety of voice and manner. "However, I'll show him a good day's sport to-morrow, Linda. We will shoot the bog, and perhaps you'll come out with the luncheon to the sand-hills?"

Linda Thresk smiled.

"Of course I will," she said. She showed to Glynn a face of grat.i.tude.

"It has done you good, Jim, to have a man to talk to," and she laid a hand upon her husband's arm and laughed quite happily. Glynn turned his back upon them and walked up to the window, leaving them standing side by side in the firelight. Outside, the moon shone from a clear sky upon the pools and the reeds of the marsh and the low white sand-hills, chequered with their tufts of gra.s.s. But upon the sea beyond, a white mist lay thick and low.

"There's a sea-fog," said Glynn; and Thresk, at the fire, suddenly lifted his head, and looked towards the window with a strange intensity. One might have thought that a sea-fog was a strange, unusual thing among the Outer Islands.

"Watch it!" he said, and there was a vibration in his voice which matched the intensity of his look. "You will see it suddenly creep through the gaps in the sand-hills and pa.s.s over the marsh like an army that obeys a command. I have watched it by the hour, time and time again. It gathers on the level of the sea and waits and waits until it seems that the word is given. Then it comes swirling through the gaps of the sand-hills and eats up the marsh in a minute."

Even as he spoke Glynn cried out:

"That's extraordinary!"

The fog had crept out through the gaps. Only the summits of the sand-hills rose in the moonlight like little peaks above clouds; and over the marsh the fog burst like cannon smoke and lay curling and writhing up to the very reeds twenty yards from the house. The sapling alone stood high above it, like the mast of a wreck in the sea.

"How high is it?" asked Thresk.

"Breast high," replied Glynn.

"Only breast high," said Thresk, and there seemed to be a note of disappointment in his voice. However, in the next moment he shook it off. "The fog will be gone before morning," he said. "I'll go and tell Donald to bring the dogs round at nine to-morrow, and have your guns ready. Nine is not too early for you, I suppose?"

"Not a bit," said Glynn; and Thresk, going up to the door which led from the house, opened it, went out, and closed it again behind him.

Glynn turned at once towards Linda Thresk. But she held up a warning hand, and waited for the outer door to slam. No sound, however, broke the silence. Glynn went to the inner door and opened it. A bank of white fog, upon which he saw his own shadow most brightly limned by the light behind him, filled the outer pa.s.sage and crept by him into the room. Glynn closed the latch quickly.

"He has left the outer door open," he said, and, coming back into the room he stood beside the fire looking down into Linda's face.

"He has been talking to me," said Glynn.

Linda looked at him curiously.

"How much did he tell you?"