Suddenly she began screaming. Before he could clamp his hand over her mouth, she dashed past him and toward the steps. It was then that he came out of his paralysis and ran, not after her, which he knew was useless, but toward the secret door. All was up. It was absolutely no use trying to explain to the guards. The situation had now entered a conventional phase. She would tell the guards that he had come into her room, through some unknown means--which would be "found out" later--and had dragged her out onto the walk, apparently with the intention of violating her. Why he should pick a public place when he already had the privacy of her rooms would not be asked. And the guards, though they would know what really had happened, would pretend to believe her and would furiously seize him and drag him off to the dungeons. The absurd thing about it was that within a few days the whole city, including Zuni herself, would believe that her story was true. By the time he'd been executed they would hate his guts, and the lot of all the slaves would be miserable for a while because they would share his blame. Green had no intention of being seized. Flight was an admission of guilt, but it made no difference now. He ran through the secret door, shut and bolted it and raced up the steps that led to her apartments. The guards would have to take the long way around; he had at least two minutes before they could unlock the two doors of the ante-rooms to her quarters, explain to the guards just outside them what had happened and begin a search for him. As for him, he was running like a rabbit, but he was thinking like a fox. Having known that just such a situation might arise, he had long ago planned in detail several possible courses of action. Now, he chose the likeliest one and began acting efficiently--if not smoothly. The staircase was a narrow corkscrew with room for only one person at a time to go up. He ran up it so fast that he got dizzy with the ever-winding turns. He reeled and had trouble keeping from falling to his left when he did arrive at its top. Nevertheless he did not pause to catch breath or balance but pulled the lever that would make the door swing out. He burst through it. No one there, thank God. He stopped for a moment, listened to make sure nobody was in the next room, then pushed on a boss set in a pattern of bronze protuberances, which was connected with the mechanism that operated the secret door. The section of wall swung back silently until it was flush with the rest, and quite indistinguishable. He then twisted the knob so the door couldn't be opened from the other side. Green took time to give fervent thanks to the builders of the castle, who had prepared this device for the owners to hide within in case of a successful invasion or revolt. If it had not been there he could not have escaped.