In his hand he held Miss Hartley’s diamond brooch! He gazed at it, overwhelmed with amazement and horror. What was happening? Was he crazed? Was his mind unhinged by the event of the morning, was this an hallucination? All that was his familiar self prayed, prayed hard, that this might be madness. Or--his instinct of self-preservation caused him to clutch at the thought--was he the victim of some atrocious trick? Impossible. Was it real? He felt the jewel--turned it, so that it sparkled under the electric light. “My God!” said Mr. Todmorden, sinking into a chair. The familiar concrete surroundings crumbled about him, were dissipated. He gazed into unfathomable mysteries. How could the brooch have got into his pocket? Someone must have put it there! Someone! Who? Who could have come into his bedroom and put that damnatory brooch into the pocket of his pyjamas? The servants? He reviewed them swiftly. Impossible! Then who? Not--surely not--he must be going mad--not himself! It was absurd, unthinkable. He had gone to bed and slept without a dream. Or, was there a dream--a dream of running in the darkness, fast, barefoot? Nonsense! Nonsense! He did not get up in the middle of the night, walk down the street, murder his dearest friend, and come back as though nothing had happened! His mind flashed on the portrait of Miss Hartley, and he felt the cruel irony of the supposition, though he himself made it. Then who--who? A wave of superstition swept over him. Devils? It was inexplicable. He revolted at something obscure within him, something which pointed a finger to the accusing brooch, which whispered the inexorable corollary in his ear. No! No! It could not be! He was innocent, he was conscious, instinctively conscious of his innocence. But was he? The something whispered persistently. An idea came to him--the proof. He went quickly across to a drawer in his dressing-table and took out his revolver. With trembling hands he examined the charges. One had been exploded! Had devils fired his revolver also? Oh, God! He thought he was going to faint. How? Why? How? Why? These two questions besieged him incessantly, battering at his crumbling mind. He clasped his head in his hands, rocked to and fro on his chair. Madness? Madness came in these sudden attacks, so an imp of thought assured him. He was mad! Mad! For hours he strode up and down the room, wrestling with demons in the night. He had killed his dearest friend. He had no doubt of it; the realization filled him with an agony of horror and grief. He would gladly have died rather than have done this awful thing. And how had he done it? How had he committed this crime without the faintest remembrance of it? It was impossible! He had not--then he looked at the brooch, and knew he had. It was monstrous, unthinkable--but true. At length, physically exhausted, he threw himself on the bed and continued the struggle--striving, striving to see light in this appalling mystery. At last he fell asleep.