I crossed the room to the window and sat down on the sill. I felt like a man who by pure accident has suddenly picked up the very piece of a jig-saw puzzle for which he has long been vainly hunting. Ever since my first meeting with Manning I had had a suspicion that in some way or other he was chiefly responsible for that impromptu swimming exhibition of mine in the East India Dock. Bascomb's description of Craill placed the matter beyond doubt. Unless there was an epidemic of broken noses, the latter was certainly the man I had seen loafing about Bedford Row, and the odds were a hundred to one that it was his hand which had so nearly put an end to my troubles.
As to what possible motive or motives could have possessed this precious pair, I was as much in the dark as ever. They could not have been acting on behalf of de Roda, for I had Christine's assurance that until she and her uncle had arrived in England neither of them had had the least notion that such a person as Dr. Manning existed. My attempted murder must, therefore, have been a strictly private enterprise, and the only reason I could see for it was the fact that I had refused to sell the island.
Now, annoying as it is to be thwarted in a scheme of land purchase, people generally stop short of assassination as a method of expressing their disappointment. There must have been some very powerful inducement to lead Manning to such a desperate step, for, utterly unscrupulous as I believed him to be, he was too intelligent to run his neck into danger unless the stake at issue was well worth the risk.
Could it be possible that while he was on the island he had stumbled independently upon my uncle's secret? It was a new idea, but the more I thought it over the more feasible it seemed. It at least gave some explanation for his extraordinary anxiety to get hold of Greensea, and it might account for the curious dread with which Christine seemed to regard him.
If this were really the truth, the whole question of his relations with the de Rodas became one of the utmost importance. Did he know the reason which had brought them all the way from South America, and, if so, had he purposely made friends with them in order to achieve his own ends? From what I had seen of the two men I could well imagine that de Roda, broken in health and in the grip of some half-insane purpose, might clutch eagerly at the unexpected assistance that was suddenly offered him. That Manning's motives for entering into any such partnership must have been purely selfish I had no manner of doubt. Possibly he was in ignorance about some essential point on which de Roda was the only person able to enlighten him, or perhaps—and at the mere notion I felt the blood surge hotly through my heart—it was Christine's beauty which had been the lure that had attracted him. Once more the recollection of that scene outside "The Laurels" came back to me with extraordinary clearness. I could see the expression on Manning's face as distinctly as if I were still crouching behind the hedge, and with a half-suppressed oath I flung open the lattice window and got up from the sill. It was certainly fortunate for one or other of us that he was no longer on the island.
Looking back indeed, I have often wondered since how I managed to get through that morning without doing something idiotic. The temptation to jump into my boat, row over to the barge, and settle up matters with Manning once and for all, was at times so strong that it became almost irresistible. By packing my bag and otherwise occupying myself, however, I succeeded in holding out until Bascomb returned from the inn, bringing the news that a trap was in readiness to take me to the station.
"You'd better let me run yer across," he added. "Then the boat'll be 'ere in case I wants it."
"I can easily send it back by Jimmy," I objected. "Isn't it a bit risky for both of us to be away at the same time?"
"I reckon there won't be no risk," he replied grimly. "If anyone comes messin' about 'ere the next 'alf hour it's a —— certainty wot'll 'appen to them."
A glance at Satan's expression convinced me that there was some truth in what he said, so without making any further difficulties I consented to his proposal.