Ellen Mary was frightened; she had never seen her child other than deliberate, calm, judicial, in all his movements. In a sudden spasm of motherly love she bent to pick him up, to caress him. "No," said the Wonder, with something that approached disgust in his tone and attitude. "No," he repeated. "What's 'e want 'angin' round 'ere? Send 'im off." He pointed again to the window. Ellen Mary looked out and saw a grinning, slobbering obscenity at the gate. Stott had scared the idiot away, but in some curious, inexplicable manner he had learned that his persecutor and enemy had gone, and he had returned, and had made overtures to the child that walked so sedately up and down the path of the little garden. Ellen Mary went out. "You be off," she said. "A-ba, a-ba-ba," bleated the idiot, and pointed at the house. "Be off, I tell you!" said Ellen Mary fiercely. But still the idiot babbled and pointed. Ellen Mary stooped to pick up a stick. The idiot blenched; he understood that movement well enough, though it was a stone he anticipated, not a stick; with a foolish cry he dropped his arms and slouched away down the lane. CHAPTER VII HIS DEBT TO HENRY CHALLIS I Challis was out of England for more than three years after that one brief intrusion of his into the affairs of Mr. and Mrs. Stott. During the interval he was engaged upon those investigations, the results of which are embodied in his monograph on the primitive peoples of the Melanesian Archipelago. It may be remembered that he followed Dr. W. H. R. Rivers' and Dr. C. G. Seligmann's inquiry into the practice and theory of native customs. Challis developed his study more particularly with reference to the earlier evolution of Totemism, and he was able by his patient work among the Polynesians of Tikopia and Ontong Java, and his comparisons of those sporadic tribes with the Papuasians of Eastern New Guinea, to correct some of the inferences with regard to the origins of exogamy made by Dr. J. G. Frazer in his great work on that subject, published some years before. A summary of Challis's argument may be found in vol. li. of the Journal of the Royal Anthropological Institute. When he returned to England, Challis shut himself up at Chilborough. He had engaged a young Cambridge man, Gregory Lewes, as his secretary and librarian, and the two devoted all their time to planning, writing, and preparing the monograph referred to. In such circumstances it is hardly remarkable that Challis should have completely forgotten the existence of the curious child which had intrigued his interest nearly four years earlier, and it was not until he had been back at Challis Court for more than eight months, that the incursion of Percy Crashaw revived his memory of the phenomenon.