It was some time before Rent came to himself and sat up, wondering what had happened. His brain was dizzy and confused. His head was aching violently. In some vague way he was haunted with an idea that he had come down to the office on some important errand which had life or death behind it. But, cudgel his brain as he might, he could not recollect what it was. There was no mark of violence on his forehead. He could not remember how he got there. He would have found it difficult, indeed, to put a name to the man who had brought this catastrophe about. He sank down into his chair, a profuse perspiration breaking out on his brow. He had utterly forgotten the past up to a few minutes ago. Yet all the time he was haunted with an insistent feeling that he had something to do, that he had something to obliterate, or suffer consequences disastrous to himself.
"I suppose it will pass off presently," he muttered. "Let me see, wasn't there somebody with me? Was Bark here, or did I dream it? Yes, he certainly was here. But what happened? Why did I come to myself lying in the fireplace? And what was it I had to do? Perhaps Swift can tell me."
But, though Rent sat there with his head in his hands for half an hour, his treacherous memory did not come back to him. He looked up eagerly as he heard a step in the passage and Swift came in. With a certain feeling of thankfulness he recognised Swift. But all that had taken place during the past week was a blank complete and absolute. Swift gazed into the face of his employer with uneasy surprise. He had not been drinking to-night. His faculties were clear.
"What on earth is the matter?" he asked. "You look so white and wild. What have you been doing?"
"Oh, I don't know," Rent groaned. "I came for a special purpose a little time ago, but what brought me I haven't the remotest idea. I suppose I had a fainting fit or something of that kind, for when I came to myself I was lying in the fender, and now I can recollect nothing that has taken place during the last few days. I have heard of brain lapses of that kind, but I have never believed in them before."
"Did you come alone?" Swift asked.
"That I can't tell you. And I don't know how long I have been here, either. Oh, my head is dreadful!"
Swift shrugged his shoulders indifferently. He had his own idea as to what had taken place, but saw that it would be a waste of time to cross-examine Rent further. He glanced about him. The man smiled cynically as he saw the end of a cheap cigarette in a saucer on the table. It was not the sort of cigarette that Rent would smoke. Possibly that kind of tobacco might appeal to a man like Bark. Swift did not require to be told any more. He had reconstructed the whole scene in his mind's eye.
"I am very sorry," he said. "Unfortunately, I can do nothing to help you. If you take my advice, you will go back to your hotel without delay and send for a doctor. It is uncommonly awkward for a man who leads your sort of life to forget all that happens for the best part of a week. An accident like that might lead to unpleasant consequences. Now let me take you back."
Rent raised no objection. He was too thoroughly frightened and broken down to heed his assistant's sarcasm. And all the time he was filled with a haunting dread that he was leaving some work unfinished, some task which, if neglected, might involve him in a veritable catastrophe. He submitted quietly to follow Swift. No words passed as they walked through the deserted town. Near the harbour they met Malcolm Grey on his way to the yacht, but neither seemed to observe him, though he recognised them plainly enough.