Mallory stepped outside the chamber, the girl just behind him, and encephalopathed the necessary directions. After a moment, Easy Money came trotting down the corridor to his side. The girl gasped, and, to his astonishment, threw her arms around the rohorse's neck. "He is a noble steed indeed, fair sir," she said; "and worthy of a knight fitting to sit in the Siege Perilous." Presently she stepped back, frowning. "He ... he is most cold, fair sir." "All horses of that breed are," Mallory explained. "Incidentally, his name is 'Easy Money'." "La! such a strange name." "Not so strange." Mallory raised his visor, making a mental note to see to it that any and all suits of armor he might buy in the future were air-conditioned. He got his spear. "Let's be on our way, shall we?" "Ye ... ye have blue eyes, fair sir." "Never mind the color of my eyes--let's get out of here." She seemed to make up her mind about something. "An ye will follow me, sir knight," she said, and started down the corridor. * * * * * A ramp, the entrance of which was camouflaged by a rotating section of the inner castle wall, gave access to the subterranean passage. The passage itself, in the flickering light of the torch that the girl had brought along, appeared at first to be nothing more than a natural cave enlarged through the centuries by the stream that still flowed down its center. Presently, however, Mallory saw that in certain places the stone walls had been cut back in such a way that the space on either side of the stream never narrowed to a width of less than four feet. He saw other evidence of human handiwork too--dungeons. They were little more than shallow caves now, though, their iron gratings having rusted and fallen away. After proceeding half a hundred yards, he paused. "I don't know what we're walking for when we've got a perfectly good horse at our disposal," he told the girl. "Come on, I'll help you into the saddle and I'll jump on behind." She shook her head. "No, fair knight, it is not fitting for a gentlewoman to ride tofore her champion. Ye will mount, and I will ride behind." "Suit yourself," Mallory said. He climbed into the saddle with a clank and a clatter, and helped her up on Easy Money's croup. "By the way, you never did tell me your name." "I hight the damosel Rowena." "Pleased to meet you," Mallory said. _Giddy-ap, Easy Money_, he encephalopathed. They rode in silence for a little while, the light from Rowena's torch dancing acappella rigadoons on bare walls and dripping ceilings, Easy Money's hoofbeats hardly audible above the purling of the stream. Presently Rowena said, "It were best that ye drew out thy sword, fair sir, for anon the fiend will beset us." "He hasn't beset us yet," Mallory pointed out. "La! fair sir, he will."