But to carry out his threat the Captain must retrace his steps and ride to the spot where the aqueduct entered the hill. How far he had proceeded Brandilancia could not guess, possibly half or three-fourths of the way. If so there was hope of reaching the opening before Radicofani, and he hurried on with what speed he could consistent with groping his way with hands and feet in the total darkness. The exertion stirred his blood but the tunnel seemed to have no end. His hands were worn and bleeding with clinging to the rough wall, and a great lassitude was stealing over him when he caught a faint glimmer of light like that of a star, not the lurid glow of a candle or torch but the blessed white light of day. It was the longed-for opening, though still far away. He thought that he had out-distanced Radicofani and stumbled on, exultation giving him new strength when a sudden eclipse of this star of hope made him crouch motionless, grovelling close to the earth. A man's head and shoulders were silhouetted blackly against the brightness. The man peered cautiously into the tunnel, and listened; but neither hearing nor seeing anything, presently withdrew. Was it Radicofani? Were workmen preparing to wall up the exit? Ought he to make a sudden rush for life and liberty? Every instinct prompted him to this resolution, and he crawled cautiously forward to within a few feet of the opening. Again the man appeared, with a sudden bound Brandilancia was upon him and both rolled in a life-and-death struggle upon the ground. So dazed was he by the glare of the full light of day, so nearly crazed with desperation that he did not recognise the voice that implored him to cease his blows, or realise that his supposed antagonist was the friendly Malespini, who, on the instant that Radicofani had discovered and descended the secret staircase, had slipped his guards and ridden to Brandilancia's succour on the swiftest horse obtainable in Rome. Hastily exchanging his own mire-besmirched garments for the secretary's unobtrusive suit, Brandilancia, with many apologies for his onslaught, listened to Malespini's explanations of a circuitous route by which he could avoid Radicofani, ride to Orte, and, leaving the horse at the inn stables, take the diligence on the following day for Venice. Malespini's suggestions, acceptable in themselves, were gratifyingly supplemented by a tender letter from Marie de' Medici and a purse well filled with gold. "Of the money I have fortunately no need," Brandilancia replied, "but the care of your mistress for my safety and your own pains in my behalf command my eternal gratitude. You shall both hear from me from Venice, and so farewell."