It was not until half-past eleven that Mr. Dering arrived at the office. He usually passed through the clerk's office outside his own; this morning he entered by his own private door, which opened on the stairs. No one had the key except himself. He generally proceeded in an orderly and methodical manner to hang up his hat and coat, take off his gloves, place his umbrella in the stand, throw open the safe, sit down in his chair, adjusted at a certain distance of three inches or so, to put on his glasses, and then, without either haste or dawdling, to begin the work of the day. It is very certain that to approach work always in exactly the same way saves the nerves. The unmethodical workman gets to his office at a varying hour, travels by different routes--now on an omnibus, now on foot; does nothing to-day in the same way that he did it yesterday. He breaks up early. At sixty he talks of retiring, at seventy he is past his work. This morning, Mr. Dering did nothing in its proper order. First, he was nearly two hours late. Next, he came in by his private door. George rose to greet him, but stopped because--a most wonderful thing--his Partner made as if he did not observe his presence. His eyes went through George in creepy and ghostly fashion. The junior partner stood still, silent, in bewilderment. Saw one ever the like, that a man should at noontide walk in his sleep! His appearance, too, was strange; his hat, pushed a little back, gave a touch of recklessness--actually recklessness--to the austere old lawyer: his eyes glowed pleasantly; and on his face--that grave and sober face--there was a pleased and satisfied smile: he looked happy, interested, benevolent, but not--no--not Mr. Edward Dering. Again, his coat, always tightly buttoned, was now hanging loose; outside, it had been swinging in the breeze, to the wonder of Lincoln's Inn: and he wore no gloves, a thing most remarkable. He looked about the room, nodded his head, and shut the door behind him. 'He's somnambulating,' George murmured, 'or else I am invisible: I must have eaten fern-seed without knowing it.' Mr. Dering, still smiling pleasantly, walked across the room to the safe and unlocked it. He had in his hand a brown-paper parcel tied with red tape--this he deposited in the safe, locked it up, and dropped the keys in his pocket. The window beside the safe was open. He sat down, looking out into the Square. At this moment Checkley opened the door softly, after his wont, to bring in more letters. He stopped short, seeing his master thus seated, head in hand, at the window. He recognised the symptoms of yesterday--the rapt look, the open eyes that saw nothing. He crept on tiptoe across the room. 'Hush!' he whispered. 'Don't move. Don't speak. He went like this yesterday. Don't make the least noise. He'll come round presently.' 'What is it?'