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 staring, and having addressed a note of brief inquiry and left it in a conspicuous position on the bureau, returned in a very perplexed frame of mind to his own premises in Staple Inn. This affair had given him a shock. He was at a loss to account for Mr Bessel's conduct on any sane hypothesis. He tried to read, but he could not do so; he went for a short walk, and was so preoccupied that he narrowly escaped a cab at the top of Chancery Lane; and at last—a full hour before his usual time—he went to bed. For a considerable time he could not sleep because of his memory of the silent confusion of Mr Bessel's apartment, and when at length he did attain an uneasy slumber it was at once disturbed by a very vivid and distressing dream of Mr Bessel.

He saw Mr Bessel gesticulating wildly, and with his face white and contorted. And, inexplicably mingled with his appearance, suggested perhaps by his gestures, was an intense fear, an urgency to act. He even believes that he heard the voice of his fellow experimenter calling distressfully to him, though at the time he considered this to be an illusion. The vivid impression remained though Mr Vincey awoke. For a space he lay awake and trembling in the darkness, possessed with that vague, unaccountable terror of unknown possibilities that comes out of dreams upon even the bravest men. But at last he roused himself, and turned over and went to sleep again, only for the dream to return with enhanced vividness.

He awoke with such a strong conviction that Mr Bessel was in overwhelming distress and need of help that sleep was no longer possible. He was persuaded that his friend had rushed out to some dire calamity. For a time he lay reasoning vainly against this belief, but at last he gave way to it. He arose, against all reason, lit his gas and dressed, and set out through the