Sometimes the muskrats came back as soon as Luke left. Sometimes they were cautious for an hour or more. But they always came and they were always trapped. When they were, they dived frantically into the water which, hitherto, had provided a safe refuge. The trap chain, sliding along the wire, was invariably stopped by the wooden peg. Since no muskrat in trouble would ever think of turning toward land, they continued their efforts to get into the water until they drowned.
Coming back, Luke picked up the drowned muskrats, placed them in the packsack, took his traps and was out of the swamp well before daylight. He had never taken more than five muskrats on any one night. But neither had he taken any less, and he had visited the swamp for seven consecutive nights.
Frosty expected him again tonight, but he was not particularly worried about the man's possible appearance because he could take care of himself. In the dark, he could always get out of any human's way. They never even seemed to know that he was around.
The big cat faced into the brisk north wind. Spring, showing her face briefly, had only wanted to tantalize the winter-weary. The wind was as cold as it had been most winter nights and there were a few snowflakes, but not enough to whiten the ground and retain tracks. Undaunted by the cold wind, that could ruffle but not penetrate his thick fur, Frosty gave his attention to a sound that was borne to his ears.
The noise was made by a roosting bird that fluttered its wings as it changed position. It was not a bird that had been in the swamp last night. A venturesome robin, impatient to be away from the south and back at the all-important business of building a nest and rearing a family, had taken a chance on the weather. Now, huddling miserably on a naked aspen, it was probably wishing it hadn't. Searching in vain for warmth, the robin shifted again.
Grown a bit hungry, Frosty stalked the tree. He advanced so artfully that few things would have taken fright, so it was not Frosty's presence that launched the robin from its perch. It was the cold wind. The robin fluttered off into the darkness, to see if there might not be a warmer roost.
Always angry when a victim eluded him, Frosty stood with one forepaw uplifted and lashed his tail. Even though experience had taught him that there would be nights when all luck leaned on the side of whatever he hunted, stalking and missing always stung. He hunted to kill, he was satisfied with nothing else, and missing the robin seemed to intensify his hunger.