Once again Holmes made a note. For some time he sat lost in thought.
"No doubt you and the boy were great comrades before this second marriage. You were thrown very close together, were you not?"
"Very much so."
"And the boy, having so affectionate a nature, was devoted, no doubt, to the memory of his mother?"
"Most devoted."
"He would certainly seem to be a most interesting lad. There is one other point about these assaults. Were the strange attacks upon the baby and the assaults upon your son at the same period?"
"In the first case it was so. It was as if some frenzy had seized her, and she had vented her rage upon both. In the second case it was only Jack who suffered. Mrs. Mason had no complaint to make about the baby."
"That certainly complicates matters."
"I don't quite follow you, Mr. Holmes."
"Possibly not. One forms provisional theories and waits for time or fuller knowledge to explode them. A bad habit, Mr. Ferguson; but human nature is weak. I fear that your old friend here has given an exaggerated view of my scientific methods. However, I will only say at the present stage that your problem does not appear to me to be insoluble, and that you may expect to find us at Victoria at two o'clock."
It was evening of a dull, foggy November day when, having left our bags at the "Chequers," Lamberley, we drove through the Sussex clay of a long winding lane, and finally reached the isolated and ancient farm-house in which Ferguson dwelt. It was a large, straggling building, very old in the centre, very new at the wings, with towering Tudor chimneys and a lichen-spotted, high-pitched roof of Horsham slabs. The doorsteps were worn into curves, and the ancient tiles which lined the porch were marked with the rebus of a cheese and a man, after the original builder. Within, the ceilings were corrugated with heavy oaken beams, and the uneven floors sagged into sharp curves. An odour of age and decay pervaded the whole crumbling building.