When, a few hundred yards nearer the monster's head, the other halted at a black rent in the rugose hide, the mouth of a burrow descending into utter blackness--Westover knew that both the Preacher and his own wild hope were real. "Down here. Into the belly of Leviathan," said the old man solemnly, and Westover nodded this time with alacrity. * * * * * The crawling descent through the twisting, Stygian burrow had much that ought to belong to a journey into Hell.... More than that, no demonologist's imagination could have conceived without experiencing the sheer horror of the yielding beslimed walls that seemed every moment squeezing in to trap them unspeakably. The air was warm and rank with the familiar heavy sweetish odor of the monster's colorless blood.... Then, as he knew it must, a light glimmered ahead, the sinus widened, and Westover climbed to his feet and stood, weak-kneed still, staring at a chamber carved in the veritable belly of Leviathan. The floor underfoot was firm, as was the wall his shaking fingers tested. Dazzled, he saw tools leaning against the walls, spades, crowbars, axes, and a half-dozen people, men and women in rough grimy clothing, who stood watching him with lively interest. The Preacher stood beside him, breathing hard and mopping his forehead. But he brushed aside the deferential offers of the others: "No--I will take him to the Doctor myself. All of you must hurry now to close the shaft." There was another tunnel to be crawled through, but that one was firm-walled as the room they left behind. They emerged into a larger cavern, that like the first was lit--only now did the miracle of it obtrude itself in his dazed mind--by fluorescent tubes, and filled with equipment that gleamed glass and metal. Over an apparatus with many fluid-dripping trays, like an air-conditioning device, bent a lone man. "Is it working?" inquired the Preacher. "It's working," the other answered without looking up from the adjustment he was making. Bubbles were rising in the fluid that filled the trays, rising and bursting, rising and bursting with a curiously fascinating monotony. The subtly tense attitudes of the two initiates told Westover better than words that there was something hugely important in the success of whatever magic was producing those bubbles. The thaumaturge straightened, wiping his hands on his trousers as he turned with a satisfied grin on his round, spectacled face--then both he and Westover froze in dumbfounded recognition. * * * * * Sutton was first to recover. He said quietly, "Welcome aboard the ark, Bill. You're just in time--I think we're about to hoist anchor." His quick eyes studied Westover's face, and he gestured toward a packing box against the wall opposite his apparatus. "Sit down. You've been through the mill."