a secret of nature by which human life can be destroyed and leave no sign, then this dead clergyman was, of course, as powerless against such a hideous danger as any other human being."
"But surely such a theory is quite as wild as any based on supernatural assumptions? You know the occupants of this house—every one of them, Sir Walter. Mary knows them, Henry knows them. I have attended most of them at one time or another. Is there one against whom such a suspicion can be entertained?"
"Not one indeed."
"Could the war have made a difference?" asked Mary. "We know how shell shock and wounds to a poor man's head had often left him apparently sound, yet in reality weakened as to his mind."
"Yes, that is true enough. And when the unfortunate men get back into everyday life from the hospitals, or endeavor to resume their old work, the weakness appears. I have seen cases. But of all the men in Chadlands there are only three examples of any such catastrophe. I know a few in the village—none where one can speak of actual insanity, however. Here there is only Fred Caunter, who was hurt about the head on board ship, but the injury left no defect."
"Fred is certainly as sane as I am—perhaps saner," admitted Sir Walter.
"Don't think I really imagine there is anything of the kind here," added Mannering. "But if these four men are in a condition to proceed with their work to-morrow, you must expect them to
