scooping up the precious liquid in their hands, drinking their fill. Satisfied, Nick placed his lips to her ear. "Where are the voras?" he breathed. She pointed to the water. Together they piled their clothing on the ledge, hooding the light with Nick's shirt so that only a faint glimmer showed. Then they waded out into the chill, unfathomable blackness of the underground lake, holding hands to steady each other. Nick's scalp was tingling and with every step he half expected his bare feet to encounter something soft and alive. The water deepened rapidly and soon they had to swim. Nick had never had the opportunity to become an expert, so although he tried to be quiet his arms made small splashing sounds as he raised and lowered them, sounds that echoed sibilantly throughout the gigantic chamber. Sue swam close, invisible in the darkness, and he flinched momentarily as a current of water from her hand felt like something living brushing his side. She grasped his hands, pulling his arms through the motions of a breast stroke that would not require lifting them above the surface. He touched her to show he understood. After that they swam more quietly, keeping together by the faint sounds of each other's breathing and an occasional touch of hands. Every few minutes they stopped and floated motionless, listening and feeling with every fiber of their bodies. Sue felt it first, a tiny, almost unnoticeable pulsation in the black water. She touched Nick's wrist, indicating a direction, and swam a few more strokes. The pulsation grew stronger. Nick felt it too, and only an effort of will kept him from threshing away as tingles of terror oozed along his spine. He felt very naked and helpless and vulnerable as he floated. Again Sue swam a few strokes and stopped. For a full minute she lay quietly, allowing her breathing to ease. Then there was a faint splash as she dived, and it seemed to Nick as though hours passed while he waited alone in the darkness. "Psst!" he hissed softly at the sound of her head breaking surface. She rested a while, dived again, and when she came up this time the pulsations were appreciably stronger. Something below turned and moved uneasily, questioningly, disturbed in its long slumber by their presence. A third time Susan dived. Nick waited,