Lt. Harper had started to say something. Then he shrugged and a hopeless look came over his face. "Perhaps you are right, Miss Kitty," he said humbly. "It may be spring, at that, before we can finish trying the more obvious combinations. We're trying to...." He broke off, turned away, and began to mark off the spot where they would saw down through the logs to fit in a fireplace. Later that day, she overheard him tell Sam that, theoretically at least, there could be millions of versions of the Earth, each removed an infinitesimal point from the next. There was a chance the flaw in the torque motor, which still eluded him, might not automatically take them back to the right cross-section, even if he found it. They might have to make an incredible number of trials, and then again they might hit it on the very next combination. "And you might not!" she cut into the conversation, with perhaps more acid in her voice than she intended. "It might not be your next, nor tomorrow, nor next spring—nor ever!" Odd that she had felt an obscure satisfaction at the stricken looks on their faces when she had said it. Yet they had it coming to them. It was time someone shocked them into a sense of reality. It took a woman to be a realist. She had already faced the possibility and was reconciled to it. Still, she was sorry. She was sorry in the way she had always regretted having to make a bad boy in kindergarten go stand with his face to the wall. She tried to make up for it that evening. "I understand," she said as they sat near the campfire outside the half-finished cabin. "You alter the torque, then try the various radio wave bands in the new position." They both looked at her, a little surprised. "It must be a slow and tedious procedure," she continued. "Very," Sam said with a groan. A shifting air current, carrying the sound of the waterfall, gave her an idea. "Too bad you can't borrow the practice of Tibetan monks," she mused. "They tie their prayers to a wheel, set it in a running stream. Every turn of the wheel is a prayer sent up to their gods. That way they can get their praying done for them while they go about the more urgent matters of providing a living for themselves and their families." She hadn't meant it to be so pointed, implying that all they were doing was sending up futile prayers