The great man waited with the satisfaction of a slightly overbearing personality for once very nearly overborne. He was now intensely interested in the crime doctor and his unique establishment. It was an interest that he had no intention of sharing with his closest colleague, until he had gone deeper into a theory and practise that were already a revelation to him. They might both prove unworkable on any large scale, and yet they might light the way to sensational legislation of the very type that Topham Vinson was the very man to introduce. Boundless ambition was one of the forces of a nature that responded to the call of any sufficiently dazzling crusade; but the passion for adventure ran ambition hard; and a crusade calculated to gratify both appetites was dazzling even to eyes of triple steel! Only, he must show this new ally his power before they struck up their alliance; that was the great reason for insisting on seeing the pickpocket. But there was a little reason besides. An excellent memory had supplied Mr. Vinson with a kind of post-impression of the pickpocket. And within one minute of the doctor's departure, and one second of the patient's prompt appearance, a certain small suspicion had been confirmed. "I think we've met before, my man?" he had begun. His man started stagily--was altogether of the stage--a bearded scarecrow in rags too ragged to be true. Vinson found the switches and made more light. "Not half a bad disguise," he continued, "whoever you may be! I suppose they're supplied on the premises for distinguished patients?" "How do you know it's a disguise?" croaked the hairy man, with downcast eyes. "Well, you don't look a distinguished patient, do you?" said the Home Secretary airily. "On the other hand, your kit doesn't convince me at all; looks to me as if it would fall to pieces but for what the ladies call a foundation--eh?" And he swooped down on the ragged tails as their owner turned a humiliated back. And the "foundation" was a perfectly good overcoat turned inside out; moreover, it was a coat that Topham Vinson seemed to know; it was a coat that he suddenly remembered, as he shot up to his full height and then stood deadly still. The pickpocket had not turned round. But his wig and beard lay at his elbow on the mantelpiece; his diminished head had sunk into his hands; and the electric light blazed upon a medallion of silver hair, up above one burning ear. "Doctor--Dollar!" exclaimed Topham Vinson. And the ingenuous ring of his own startled voice only added to his sense of outrage. "Yes! I was the man.... It was only to get at you--you know that!" It was a hoarse voice muttering to the wall, in a dire discomfiture that had its effect on the insulted Minister. "So that was your weakness!" The plain comment was icier than any sneer. "Picking and stealing--and your hand still keeps its cunning!"