As he spoke, Walter half leaned upon the gate beside him, and adjusted the knife behind the vicar's back scientifically. Then, without a word more, in spite of a natural shrinking, he drove it home up to the haft, with a terrible effort of will, at the exact spot on the back that the books had pointed out to him. It was a painful thing to do, but he did it carefully and well. The effect of Walter Dene's scientific prevision was even more instantaneous than he had anticipated. Without a single cry, without a sob or a contortion, the vicar's lifeless body fell over heavily by the side of the gate. It rolled down like a log into the dry ditch beneath. Walter knelt trembling on the ground close by, felt the pulse for a moment to assure himself that his uncle was really dead, and having fully satisfied himself on this all-important point, proceeded to draw the knife neatly out of the wound. He had let it fall in the body, in order to extricate it more easily afterward, and not risk pulling it out carelessly so as to get himself covered needlessly by tell-tale drops of blood, like ordinary clumsy assassins. But he had forgotten to reckon with little King Charlie. The dog jumped piteously upon the body of his master, licked the wound with his tongue, and refused to allow Walter to withdraw the knife. It would be unsafe to leave it there, for it might be recognized. "Minimize the adverse chances," he muttered still; but there was no inducing King Charlie to move. A struggle might result in getting drops of blood upon his coat, and then, great heavens, what a terrible awakening for Christina! "Oh, Christina, Christina, Christina," he said to himself piteously, "it is for you only that I could ever have ventured to do this hideous thing." The blood was still oozing out of the narrow slit, and saturating the black coat, and Walter Dene with his delicate nerves could hardly bear to look upon it.