He carefully selected a cigarette and lit it. The situation required reviewing.
Item one. Sir Raymond Blantyre was a consummate swine who had, by the grace of Allah, been stung on the raw by a hornet. Moreover, before Drummond had finished with him the hornets would have swarmed. But he could wait.
Item two. The genuine Professor Scheidstrun appeared to be a harmless old poop, who was more sinned against than sinning. And he certainly could wait.
Item three. The other Professor Scheidstrun—alias Blackton, alias Peterson, present address unknown—had got away with the goods. He was in full and firm possession of the momentous secret, which Blantyre had paid him half a million to destroy. And involuntarily Drummond smiled. How like him! How completely Peterson to the life! And then the smile faded. To get it, he had murdered a harmless old man in cold blood.
Item four. He himself was in undisputed possession of an empty house in which Peterson had been only that morning.
Could he turn item four to advantage in solving the address question in item three? Everything else was subservient to that essential fact: where was Peterson now? And from his knowledge of the gentleman it was unlikely that he had left directions for forwarding letters pasted conspicuously on the wall. He was one of those shy flowers that prefer to blush unseen. At the same time it was possible that an exhaustive search of the desk upstairs might reveal some clue. And if it didn’t presumably the bird who had locked him in would return in due course to find out how he was getting on. Everything therefore pointed to a policy of masterly inactivity in the hopes that something or somebody would turn up.
He slowly ascended the stairs, and again entered the room where the interview had taken place. Time was of no particular object, and for a while he stood by the door turning over the problem in his mind. Then suddenly his eyes became alert: there was a door let into the wall which, by some strange oversight, he had not seen before. And in a flash he remembered the step which he thought he had heard while he was below. Was there someone in that room? and if so, who? Could it be possible—and a glow of wild excitement began to tingle in his veins at the mere thought—could it be possible that the solution of the problem lay close at hand? That here, practically in the same room with him, was Peterson himself?
With one bound he was across the room, and the door was open. One glance was sufficient to dash the dawning hope to the ground: the room was empty, like all the rest had been. But though it was empty it was not devoid of interest, and a faint smile came on Drummond’s face as he surveyed the contents. Wigs, clothes, mirrors filled the place to overflowing, though there was no trace of untidiness. And he realised that he was in the inner sanctum where Peterson carried out his marvellous changes of appearance. And with a sudden grim amusement he recognised on a chair the identical egg-stained coat that the spurious Professor Scheidstrun had worn on his visit to him the preceding afternoon. In fact he was so interested in that and other things that he failed to notice a rather curious phenomenon in the room behind him. The heavy curtain which he had hit with his fist moved slightly as if blown by the wind. And there was no wind.
With genuine interest he examined the exhibits—as he called them in his own mind. It was the first time he had ever penetrated into one of Peterson’s holy of holies, and though the proprietor was not there himself to act as showman, he was quite able to appreciate the museum without the services of a guide. The wigs—each one on its own headrest—particularly appealed to him. In fact he went so far as to try some of them on. And after a time a feeling of genuine admiration for the wonderful thoroughness of the man filled his mind. Murderer, thief, forger, and blackguard generally—but what a brain! After all, he fought a lone hand, deliberately pitting himself against the whole of the organised resources of the world. With only the girl to help him he had fought mankind, and up to date he had won through. For both their previous battles had been drawn, and now that the third round was under way—or soon would be—he saluted his adversary in spirit as a foeman worthy of his steel. It was a good thing, after all, that he had not brought in the police. Peterson fought alone: so would he. As it had been in the past, so let it be this time. Their own particular pals on each side could join in the battle if and when occasion arose; but the principal combat must be between Peterson and him—no mercy given, no mercy asked. And this time he had a presentiment that it would be a fight to a finish. It required no stretch of imagination on his part to realise the enormous plum which the criminal had got hold of; it required no stretch of imagination to realise that he would fight as he had never fought before to retain it.
And once again there came up the unanswered question—where was he? It was even impossible to say if he was still in England.
Another thing occurred to Drummond also, as he strolled back into the other room and sat down at the desk. On this occasion the dice would be loaded more heavily in Peterson’s favour than before. In the past the only method by which he had ever recognised him was by his strange but unmistakable little mannerism when excited—the mannerism which was innate and had persisted through all his disguises. And now he had discovered what it was; had actually told another man to employ
