“My business is to see more than others see,” said Muller. “But you have not told me yet what the top was doing there. Why did you take a toy like that with you when you went out on such an errand?”

“It was in my pocket by chance. When I reached for my handkerchief to quench the flow of blood the top came out with it. I must have touched the spring without knowing it, for the top began to spin. I stood still and watched it, then I ran after it. It spun around the room and finally came back to the body. So did I. The pastor was quite still and dead by that time.”

“You have heard everything, Dr. Orszay?” asked the detective, rising from his chair.

“Yes, I have heard everything,” answered the venerable head of the asylum. He was utterly crushed by the realisation that all this tragedy and horror had gone out from his house.

Varna rose also. He understood perfectly that now Gyuri’s power was at an end and he was as pleased as a child that has just received a present. “And now you’re going to shoot him?” he asked, in the tone a boy would use if asking when the fireworks were to begin.

Muller shook his head. “No, my dear Cardillac,” he replied gravely. “He will not be shot—that is a death for a brave soldier—but this man has deserved—” He did not finish the sentence, for the warder sank to the floor unconscious.

“What a coward!” murmured the detective scornfully, looking down at the giant frame that lay prostrate before him. Even in his wide experience he had known of no case of a man of such strength and such bestial cruelty, combined with such utter cowardice.

Varna also stood looking down at the unconscious warder. Then he glanced up with a cunning smile at the other two men who stood there. The doctor, pale and trembling with horror, covered his face with his hands. Muller turned to the door to call in the attendants waiting outside. During the moment’s pause that ensued the madman bent over his worktable, seized a knife that lay there and dropped on one knee beside the prostrate form. His hand was raised to strike when a calm voice said: “Fie! Cardillac, for shame! Do not belittle yourself. This man here is not worthy of your knife, the hangman will look after him.”

Varna raised his loose-jointed frame and looked about with glistening eyes and trembling lips. His mind was completely darkened once more. “I must kill him—I must have his blood—there is no one to see me,” he murmured. “I am a hangman too—he has made a hangman of me,” and again he bent with uplifted hand over the man who had utilised his terrible misfortune to make a criminal of him. But two of the waiting attendants seized his arms and threw him back on the floor, while the other two carted Gyuri out. Both unfortunates were soon securely guarded.

“Do not be angry with me, doctor,” said Muller gravely, as he walked through the garden accompanied by Orszay.