"I have given up wondering where the real Dawson ends and where the disguises begin. The man I met up north wasn't the least bit like the one down here."

"A deal younger, I expect," said the chief assistant, grinning. "He shifts about between thirty and sixty. The old man is no end of a cure, and tries to take us in the same as he does you. There's an inspector at the Yard who was at school with him down Hampshire way, and ought to know what he is really like, but even he has given Dawson up. He says that the old man does not know his own self in the looking-glass; and as for Mrs. Dawson, I expect she has to take any one who comes along claiming to be her husband, for she can't, possibly tell t'other from which."

"One might make a good story out of that," I observed to Cary.

"I don't understand," said he. "Mr. Dawson told me once that I knew the real Dawson, but that few other people did."

"If he told you that," calmly observed the assistant, "you may bet your last shirt he was humbugging you. He couldn't tell the truth, not if he tried ever so."

"What is he at now?" I asked.

"I don't know, sir. And if he told me, I shouldn't believe him. I don't take no account of a word that man says. But he's the most successful detective we've got in the whole Force. He's sure to be head of the C.I.D. one day, and then he will have to stay in his office and give us others a chance."

"I don't believe he will," I observed, laughing. "There will be a sham Dawson in the office and the genuine article will be out on the rampage. He is a man who couldn't sit still, not even if you tied him in his chair and sealed the knots."

We spent a pleasant hour pulling Dawson to pieces and leaving to him not a rag of virtue, except intense professional zeal. We exchanged experiences of him, those of the chief assistant being particularly rich and highly flavoured. It appeared that Dawson when off duty loved to occupy the platform at meetings of his religious connection and to hold forth to the elect. The privilege of "sitting under him" had been enjoyed more than once by the assistant, who retailed to us extracts from Dawson's favourite sermon on "Truth." His views upon Truth were unbending as armour plate. "Under no circumstances, not to save oneself from imminent death, not to shield a wife or a child from the penalties for a lapse from virtue, not even to preserve one's country from the attacks of an enemy, was it permissible to a Peculiar Baptist to diverge by the breadth of a hair from the straight path of Truth. Hell yawned on either hand; only along the knife edge of Truth could salvation be reached."

"He made me shiver," said the chief assistant, "and he drove me to thinking of one or two little deceptions of my own. When Dawson preaches, his eyes blaze, his voice breaks, and he will fall on his knees and pray for the souls of those who heed not his words. You can't look at him then and not believe that he means every word he says. Yet it's all humbug."