I remembered. What I saw just now."
"You hoped it wasn't true?" she queried in surprise. "But you did it."
"I did it, Pat? Do you think I could have done it?"
"But you did!" Her voice had taken on a chill inflection; the memory of those indignities came to steel her against him.
"Pat, do you think I could assault your daintiness, or maltreat the beauty I worship? Didn't anything occur to you? Didn't anything seem queer about—about that ghastly evening?"
"Queer!" she echoed. "That's certainly a mild word to use, isn't it?"
"But I mean—hadn't you any idea of what had happened? Didn't you think anything of it except that I had suddenly gone mad? Or that I'd grown to hate you?"
"What was I to think?" she countered, trying to control the tremor that had crept into her voice.
"But did you think that?"
"No," the girl confessed after a pause. "At first, when you started with that drink, I thought you were looking for material for your work. That's what you said—an experiment. Didn't you?"
"I guess so," he groaned.
"But after that, after I'd swallowed that horrible stuff, but before everything went hazy, I—thought differently."
"But what, Pat? What did you think?"
"Why, then I realized that it wasn't you—not the real you. I could feel the—well, the presence of the person I knew; this presence that was tormenting me was another person, a terrible, cold, inhuman stranger."
"Pat!" There was a note almost of relief in his voice. "Did you really feel that?"
"Yes. Does it help matters, my sensing that? I can't see how."
His eyes, which had been fixed on hers, dropped suddenly. "No," he muttered, all the relief gone out of his tones, "no, it doesn't help, does it? Except that it's a meager consolation to me to know that you felt it."
Pat struggled to suppress an impulse to reach out her hand, to stroke his hair. She caught herself sharply; this was the very danger against which she had warned herself—this was the very attitude she had anticipated in Nicholas Devine, the lure which might bait a trap. Yet he looked so forlorn, so wistful! It was an effort to forbear from touching him; her fingers fairly ached to brush his cheek.
"Only a fool walks twice into the same trap," she told herself. Aloud she said, "You promised me an explanation. If you've any excuse, I'd like to hear it." Her voice had resumed its coolness.
"I haven't any excuse," he responded gloomily, "and the explanation is perhaps too bizarre, too fantastic for belief. I don't believe it entirely; I suppose you couldn't believe it at all."
"You promised," she repeated. The carefully assumed composure of her voice threatened to crack; this wistfulness of his was a powerful weapon against her defense.
"Oh, I'll give you the explanation," he said miserably. "I just wanted to warn you you'd not believe me." He gave her a despondent glance. "Pat, as I love you I swear that what I tell you is the truth. Do you think you can believe me?"
"Yes," she murmured. The tremor had reappeared in her voice despite her efforts.
Nicholas Devine turned his eyes toward the lake and began to speak.
15.
A Modern Mr. Hyde
"I don't remember when I first noticed it," began Nick in a low voice, "but I'm two people. I'm me, the person who's talking to you now, and I'm—another."
Pat, looking very pale and serious in the dusky light, said nothing at all. She simply gazed at him silently, without the slightest trace of surprise in her wide dark eyes.
"This is the real me," proceeded Nick miserably. "The other is an outsider, that has somehow contrived to grow into me. He is different; cold, cruel, utterly selfish, and not exactly—human. Do you understand?"
"Y—Yes," said the girl, fighting to control her voice. "Sort of."
"This is a struggle that has continued for a long time," he pursued. "There were times in childhood when I remember punishments for offenses I never committed, for nasty little meannesses he perpetrated. My mother, and after her death, my tutoress, thought I was lying when I tried to explain; they thought I was trying to evade responsibility. After a while I learned not to explain; I learned to accept my punishments doggedly, and to fight this other when he sought dominance."
"And could you?" asked Pat, her voice frankly quavery. "Could you fight him?"
"I was the stronger; I could win—usually. He slipped into consciousness as wilful, mean little impulses, nasty moods, unreasoning hates and such unpleasant things. But I was always the stronger: I learned to drive him into the background."
"You said you were the stronger," she mused. "What does that mean, Nick?"
"I've always been the stronger; I am now. But recently, Pat—I think it's since I fell in love with you—the struggle has been on evener terms. I've weakened or he's gained. I have to guard against him constantly; in any moment of weakness he may slip in, as on our ride last week, when we had that near accident. And again Saturday." He turned appealing eyes on the girl. "Pat, do you believe me?"
"I guess I'll have to," she said unhappily. "It—makes things rather hopeless, doesn't it?"
He nodded dejectedly. "Yes. I've always felt that sooner or later I'd win, and drive him away permanently. I've felt on the verge of complete victory more than once, but now—" He shook his head doubtfully. "He had never dominated me so entirely until Saturday night—Pat, you don't know what Hell is like until you're forced as I was to watch the violation of the being you worship, to stand helpless while a desecration is committed. I'd rather die than suffer it again!"
"Oh!" said the girl faintly. She was thinking of the sorry picture she must have presented as she reeled half-clothed through the alley. "Can you see what—he sees?"
"Of course, and think his thoughts. But only when he's dominant. I don't know what evil he's planning now, else I could forestall him, I would have warned you if I could have known."
"Where is he now?"
"Here," said Nick somberly. "Here listening to us, knowing what I'm thinking and feeling, laughing at my unhappiness."
"Oh!" gasped Pat again. She watched her companion doubtfully. Then the memory of Dr. Horker's diagnosis came to her, and set her wondering. Was this story the figment of an unsettled mind? Was this irrational tale of a fiendish intruder merely evidence that the Doctor was right in his opinion? She was in a maze of uncertainty.
"Nick," she said, "did you ever try medical help? Did you ever go to a doctor about it?"
"Of course, Pat! Two years ago I went to a famous
