"Oh! he exists all right," declared the doctor. "But I am charitable enough to suppose him mad—in spite of his method and his motive."

"Did he tell you what that was?" asked Scarth with a sneer.

"No; but Jack did. He seems to have been in the man's power—under his influence—to an extraordinary degree. He had even left him a wicked sum in a will made since he came of age. I needn't tell you that he has now made another, revoking——"

"No, you need not!" cried Mostyn Scarth, turning livid at the last moment. "I've heard about enough of your mares' nests and mythical monsters. I wish you good morning, and a more credulous audience next time."

"That I can count upon," returned the doctor at the door. "There's no saying what they won't believe—at Scotland Yard!"


VI

ONE POSSESSED

Lieutenant-General Neville Dysone, R.E., V.C., was the first really eminent person to consult the crime doctor by regular appointment in the proper hours. Quite apart from the feat of arms which had earned him the most coveted of all distinctions, the gigantic General, deep-chested and erect, virile in every silver-woven hair of his upright head, filled the tiny stage in Welbeck Street and dwarfed its antique properties, as no being had done before. And yet his voice was tender and even tremulous with the pathetic presage of a heartbreak under all.