There was none that he could see. He glanced after the others. All three had their backs to him as they made their way down the track. Swiftly, Karney pocketed the knots. The theft took moments only. Once the cord was safely out of sight he felt a surge of triumph which was out of all proportion to the goods he'd gained. He was already anticipating the hours of amusement the knots would furnish. Time when he could forget himself, and his emptiness; forget the sterile summer and the loveless winter ahead; forget too the old man lying in his own waste yards from where he stood.

"Karney!" Catso called.

Karney turned his back on Pope and began to walk away from the body and the attendant litter of belongings. A few paces from the edge of the tunnel the old man behind him began to mutter in his delirium. The words were incomprehensible. But by some acoustic trick, the walls of the tunnel multiplied the sound. Pope's voice was thrown back and forth and back again, filling the tunnel with whispers.

Itwasn't until much later that night, when he was sitting alone in his bedroom with his mother weeping in her sleep next door, that Karney had the opportunity to study the knots at leisure. He had said nothing to Red or the others about his stealing the cord. The theft was so minor they would have mocked him for mentioning it. And besides, the knots offered him a personal challenge, one which he would face-and conceivably fail-in private.

After some debate with himself he elected the knot he would first attempt and began to work at it. Almost immediately he lost all sense of time passing; the problem engrossed him utterly. Hours of blissful frustration passed unnoticed as he analyzed the tangle, looking for some clue as to a hidden system in the knotting. He could find none. The configurations, if they had some rationale, were beyond him. All he could hope to do was tackle the problem by trial and error. Dawn was threatening to bring the world to light again when he finally relinquished the cord to snatch a few hours of sleep, and in a night's work he had merely managed to loosen a tiny fraction of the knot.