Late in the afternoon, Andy started back into the swamp to see how his charges were doing.
The pair he'd left in Dead Man's Slough were busy making themselves a house. When Andy approached, they swam cautiously to a clump of reeds and lurked near them. Studying him with watchful eyes, they swam in little circles. When he made a sudden move, they dived. Satisfied, Andy went on. These two were at least beginning to suspect that all callers wouldn't necessarily be friendly.
The second pair, the naturally cautious ones, were not in sight when Andy approached the slough where he'd left them. But dimly beneath the water he saw the entrance to a den. No doubt the muskrats were in it.
Andy came to the third slough just in time to see a clean-limbed gray fox, a muskrat dangling limply from his jaws, trotting away from it. Andy muttered under his breath. He hadn't brought a gun because, though he'd known that predators might be raiding his muskrats, he hadn't expected to catch any in the act. But from now on he must always be armed and definitely he would have to eliminate this particular fox. Having learned that it could catch muskrats, it might hunt them constantly and conceivably could catch all twelve.
Returning to his house, Andy took two fox traps and a bottle of fox scent from his storage room. Slipping the bottle into his pocket and taking the traps in one hand and his repeating .22 rifle in the other, he went back to the slough. He tied a flat stone to the pan of each trap, waded into the slough and set the traps so that only the stone protruded above water. Then he cut two willow withes and dipped one end of each into his bottle of fox scent. Eighteen inches from his traps, he thrust them into the mud until only the scented ends protruded. It was an old and effective trapper's trick, based on a fox's dislike of getting wet. Excited by the tantalizing scent and wanting to get close to it, the fox would use the stone on the trap pan as an effective means of so doing and, of course, spring the trap.
Twilight fell, and, in the gathering gloom of early evening, Andy hurried to the next slough. He halted in his tracks and muttered angrily. On a patch of smooth grass, five feet from the water's edge, lay the gnawed head and naked, scaley tail of a muskrat. There was no track or sign to show what had caught it, but clinging to a nearby reed, Andy found a cottony puff of fur from a bobcat. He muttered again.
It was too dark to go to the house for more traps, but it would be well to have some waiting here. The killer, probably a bobcat, knew of the other muskrat and would return to get it.
Andy trotted toward the next and last slough and found both muskrats swimming placidly. A split second later, a great horned owl dipped out of the sky, plucked one of the swimming animals from the water and floated away with its victim in its talons.
It happened so suddenly and so unexpectedly that Andy needed a moment to realize it had happened at all. It was like watching a peaceful scene in which a bomb is suddenly exploded. Uncannily silent wings giving not the slightest hint of his approach, the owl was not there, then he was, then he was gone. So perfectly timed and executed was the maneuver that it was carried through from start to finish without the owl's ruffling a single feather or missing one beat of his wings. It was a master feat by a master craftsman.