Only a solitary being waked long that night at Chadlands, and only a solitary mind suffered tribulation.  But into the small hours Henry Lennox endured the companionship of disquiet thoughts.  He could not sleep, and his brain, clear enough, retraced no passage from the past day.  Indeed the events of the day had sunk into remote time.  He was only concerned with the present, and he wondered while he worried that he should be worrying.  Yet a proleptic instinct made him look forward.  He had neither lied nor exaggerated to May.  From the moment of losing the toss, he honestly experienced a strong, subjective impression of danger arising out of the proposed attack on the mysteries of the Grey Room.  It was, indeed, that consciousness of greater possibilities in the adventure than May admitted or imagined which made Lennox so insistent.  Looking back, he perceived many things, and chiefly that he had taken a wrong line, and approached Mary’s husband from a fatal angle.  Too late he recognized his error.  It was inevitable that a hint of suspected danger would confirm the sailor in his resolution; and that such a hint should follow the spin of the coin against Lennox, and be accompanied by the assurance that, had he won, Henry would have proceeded, despite his intuitions, to do what he now begged Tom not to do—­that was a piece of clumsy work which he deeply regretted.

At the hour when his own physical forces were lowest, his errors of diplomacy forced themselves upon his mind.  He wasted much time, as all men do upon their beds, in anticipating to-morrow; in considering what is going to happen, or what is not; in weighing their own future words and deeds given a variety of contingencies.  For reason, which at first kept him, despite his disquiet, in the region of the rational, grew weaker with Henry as the night advanced; the shadow of trouble deepened as his weary wits lost their balance to combat it.  The premonition was as formless and amorphous as a cloud, and, though he could not see any shape to his fear, or define its limitations, it grew darker ere he slept.  He considered what might happen and, putting aside any lesser disaster, tried to imagine what the morning would bring if May actually succumbed.

For the moment the size of such an imaginary disaster served curiously to lessen his uneasiness.  Pushed to extremities, the idea became merely absurd.  He won a sort of comfort from such an outrageous proposition, because it brought him back to the solid ground of reason and the assurance that some things simply do not happen.  From this extravagant summit of horror, his fears gradually receded.  Such a waking nightmare even quieted his nerves when it was past; for if a possibility presents a ludicrous side, then its horror must diminish by so much.  Moreover, Henry told himself that if the threat of a disaster so absolute could really be felt by him, it was his duty to rise at once, intervene, and, if necessary, summon his uncle and force May to leave the Grey Room immediately.