"We have thought of a plan, sir, that might succeed, although it would be somewhat difficult. The dormer-window from which these bolts have been fired lies thirty or forty feet away from that from which we were looking. The roof is so steep that no one could hold a footing upon it for a moment, nor could a plank be placed upon which he could walk. The window is about twelve feet from the top of the roof. We think that one standing on the ledge of our window might climb on to its top, and once there swing a rope with a stout grapnel attached to catch on the ridge of the roof; then two or three men might climb up there and work themselves along, and then lower themselves down with a rope on to the top of the next window. They would need to have ropes fastened round their bodies, for the height is great, and a slip would mean death. "The one farthest out on the window could lean over when he hears a noise below him, and when he saw the cross-bow thrust from the window, could by a sudden blow knock it from the fellow's hand, when it would slide down the roof and fall into the narrow yard between the warehouse and the walls. Of course some men would be placed there in readiness to seize it, and others at the door of the warehouse to arrest the traitor if he ran down." "I think the plan is a good one, though somewhat difficult of execution," Captain Vere said. "But this enterprise on the roof would be a difficult one and dangerous, since as you say a slip would mean death." "Lionel and myself, sir, would undertake that with the aid of two active men to hold the ropes for us. We have both done plenty of bird-nesting in the woods of Hedingham, and are not likely to turn giddy." "I don't think it is necessary for more than one to get down on to that window," Captain Vere said. "Only one could so place himself as to look down upon the cross-bow. However, you shall divide the honour of the enterprise between you. You, as the eldest and strongest, Geoffrey, shall carry out your plan on the roof, while you, Lionel, shall take post at the door with four men to arrest the traitor when he leaves. I will select two strong and active men to accompany you, Geoffrey, and aid you in your attempt; but mind, before you try to get out of the window and to climb on to its roof, have a strong rope fastened round your body and held by the others; then in case of a slip, they can haul you in again. I will see that the ropes and grapnels are in readiness." The next morning early Geoffrey proceeded with the two men who had been selected to accompany him to his usual look-out. Both were active, wiry men, and entered fully into the spirit of the undertaking when Geoffrey explained its nature to them. They looked out of the dormer-window at the sharp roof slanting away in front of them and up to the ridge above.