For long he stood looking after her, fists clenched and his face very gray in the morning light. Some small inner voice told him that his new plan, and the others which he had built upon it, must crumble and fall as a castle of sand. He groaned and, turning aside, made his way through the shrubbery to the highroad. He was become accessory to a murder; for he had learned for what reason and by what means Sir Charles Abingdon had been assassinated. He had even learned the identity of his assassin; had learned that the dreaded being called Fire-Tongue in India was known and respected throughout the civilized world as His Excellency Ormuz Khan! Paul Harley had learned these things also, and now at this very hour Paul Harley lay a captive in Hillside. Naida had assured him that Paul Harley was alive and safe. It had been decided that his death would lead to the destruction of the movement, but pressure was being brought upon him to ensure his silence. Yes, he, Nicol Brinn, was bound and manacled to a gang of assassins; and because his tongue was tied, because the woman he loved better than anything in the world was actually a member of the murderous group, he must pace the deserted country lanes inactive; he must hold his hand, although he might summon the resources of New Scotland Yard by phoning from Lower Claybury station! Through life his word had been his bond, and Nicol Brinn was incapable of compromising with his conscience. But the direct way was barred to him. Nevertheless, no task could appal the inflexible spirit of the man, and he had registered a silent vow that Ormuz Khan should never leave England alive. Not a soul was astir yet upon the country roads, and sitting down upon a grassy bank, Nicol Brinn lighted one of his black cigars, which in times of stress were his food and drink, upon which if necessary he could carry-on for forty-eight hours upon end. In connection with his plan for coercing Harley, Ormuz Khan had gone to London by rail on the previous night, departing from Lower Claybury station at about the time that Colonel Lord Wolverham came out of the Cavalry Club to discover his Rolls Royce to be missing. This same Rolls Royce was now a source of some anxiety to Nicol Brinn, for its discovery by a passing labourer in the deserted barn seemed highly probable. However, he had matters of greater urgency to think about, not the least of these being the necessity of concealing his presence in the neighbourhood of Hillside. Perhaps his Sioux-like face reflected a spirit allied in some respects to that of the once great Indian tribe. His genius for taking cover, perfected upon many a big-game expedition, enabled him successfully to accomplish the feat; so that, when the limousine, which he had watched go by during the morning, returned shortly after noon, the lack-lustre eyes were peering out through the bushes near the entrance to the drive.