He returned at last to Cambridge; and now illness fell upon him for the second time in his life. Not a definite illness, but a lingering _malaise_, which seemed to bereave him of all spring and energy. He was told that he must not work, must spend his time in the open air, must be careful in matters of food and sleep. He lived indeed for some months the life of an invalid. The restrictions fretted him intolerably; but he found that every carelessness brought its swift revenge. He had previously felt little or no sympathy with invalids; he had disliked the signs of illness in others, the languor, the sunken eye, the fretfulness of fever, and now he had to bear them himself. He had always felt, half unconsciously, that illness was a fanciful thing, and might be avoided by a kind of cheerful effort. But now he had to go through the experience of feebleness and peevish inactivity. He used sometimes, out of pure irritability, to resume his work; but he had no grip or vigour; his conceptions were languid, his technical resources were dulled; and then came strange and unmanning dizzinesses, the horrible feeling, in the middle of a cheerful company, that one is hardly accountable for one's actions, when the only escape seems to be to hold on with all one's might to the slenderest thread of conventional thought. The difficulty was to know how to fill the time. There was no relish in company, and yet a hatred of solitude; he used to moon about, sit in the garden, take irresolute walks; he read novels, and found them unutterably dreary. Music was the only thing that lifted him out of his causeless depression, and gave back a little zest to life; but the fear that was almost intolerable was the possibility that he would never emerge out of this wretchedness. Day after day passed, and no change was apparent; till just when he was on the verge of despair, when the darkest visions began to haunt his mind, the cloud began to lift. He found that he could work a little, though the smallest excess was still punished by days of feebleness. But, holding to this thread of hope, Hugh climbed slowly out of the darkness; and it was a day to him of deep and abiding gratitude when, after a long Swiss holiday, in which his bodily activity had come back to him with an intensity of pleasure, Hugh realised that he was again in his ordinary health.