It did not take him long to reach the first or big dam. It was difficult for this boy of the city to believe that this could be the work of animals and not men, and had he not seen some of the beaver cuttings in the Bronx Park at home he would have been inclined to think that Upton had been stuffing him when he told him about the dam. There was little opportunity to examine the construction, because it was covered with snow and was in effect a long solid wall of glistening white. Beyond stretched the smooth even surface of the big pond, with nothing to break the dead level of it but three white mounds over toward the north shore. These he knew must be the houses of which Upton had told him, and he at once decided to go over and investigate them.
As he approached them he discovered several small mounds around two of the houses, but thought nothing of this until he noticed that the snow around them had been recently disturbed, and that the mounds themselves were not crusted. Instantly every sense which his Scout training had developed was aroused. Here was something peculiar, and to be investigated. Could this be the work of the beavers? He would find out. Rapidly he dug into one of the mounds and presently disclosed evergreen boughs over which the snow had been heaped. Could this be some work of the strange little animals of which he had never heard? He lifted one of the boughs and looked at the butt. It had been broken off and not cut by teeth. Moreover, it was freshly broken. He examined another with the same result. Underneath was a larger one, and this had been cut with an axe.
Sparrer straightened and looked keenly in all directions. A sudden suspicion was rapidly crystallizing into conviction in his mind. This was the work of man. What did it mean? So far as he could see there was not another living thing in all that great white waste. The vast silence was oppressive. Involuntarily he shivered. For the first time the loneliness of complete solitude gripped him, the more so that hitherto in all his life he had never known what it was to be absolutely alone. From babyhood he had been surrounded night and day by human beings, many of them evil, but human nevertheless. Even since he had entered the woods he had not been out of speaking distance of one or more of his companions until now. An overwhelming sense of littleness and insignificance swept over him. There was something sinister and threatening in the towering hills. He had the feeling that unseen eyes were watching him and it made his flesh creep. He knew it was, must be, only a feeling, yet he could not rid himself of it. It is a feeling which every one who is alone for the first time in the wilderness experiences.
Then he shook himself. "Youse is sure losing yer goat, Sparrer," he muttered. "Buck up!"
With this he resumed his investigations. When the last of the boughs had been removed he found a hole in the ice about a foot and a half wide and a trifle longer. Along one end and both sides small dead sticks had been driven into the mud and close to the edges of the hole. These were about four inches apart and formed a little pen with one end open. Close to one side and projecting beyond the pen through the open end was a long freshly cut green poplar stick fastened about two inches above the bottom. The water was shallow and presently he made out a steel trap dimly outlined well inside the pen quite close to the poplar stick, the chain fastened to one of the pen stakes.
It was all perfectly clear now to even such a novice as Sparrer. It was a set for beaver. He knew enough about the animals to know that their favorite food is poplar bark. The green poplar stick was bait. It seemed queer to think of a stick of wood as bait, but this is what it was, and nothing else. He saw that it was securely fastened at the butt end in a corner of the pen and was staked down near the opening so that there could be no cross movement. It could not be pulled out. The only way for a hungry beaver to get it would be to enter the pen and cut it off and in doing this he could hardly fail of stepping in the trap. Then he would drown miserably under the ice. The part left sticking out beyond the pen was by way of a teaser. It would be the first part touched by the animal and would undoubtedly be cut off close to the pen. Having had a taste of the fresh green bark and no harm having come from it the animal would unsuspectingly enter the pen to secure the remainder, whereas with the bait wholly within the pen in the first place the animal would be suspicious and wary of entering. It was all very simple, clever and diabolical.
Sparrer's first impulse was to spring the trap, but on second thought he decided to leave it alone. It might well be that his discovery were better unknown. His life in New York streets had taught him that it is possible to know too much; that some things are better forgotten as soon as learned. He recalled what had been said about the illegality of trapping beaver. If Pat and Alec were doing a little quiet poaching it was none of his business. They would not thank him for interfering. Of course the trap must be theirs. There was no one else trapping in the Hollow. The poachers there had been so much talk about were working miles beyond the Hollow, on the long line. He remembered now that neither Pat nor Alec had once suggested a trip up this way. Good reason. They wanted to avoid any embarrassing questions about those queer little mounds, for he knew now that each one covered a trap-pan. The boughs and the snow were to keep the holes from freezing over. He counted the mounds. There were three at one house and four at the other.
"Youse better cover this up and make yer get-away while the going's good," he muttered as he replaced the boughs and packed the snow over them until the mound was as nearly as he had found it as it was possible to make it. Then he made a hasty examination of the houses. The snow was melted on the tops of the two around which the traps were set, sure sign that they were inhabited. This was caused by the warm air from the interior escaping through the air holes which are always left in the top of a beaver house. The third was solidly crusted over, a reasonably sure indication that it was abandoned.
Having satisfied his curiosity Sparrer started back to the dam and followed it to the woods on the farther shore. He had intended to go straight across the pond to the second dam, but his discovery of the traps had aroused his sense of caution and he decided that it would be better to keep to the woods. On the broad white expanse of the pond he would be altogether too conspicuous should it happen that curious eyes were watching. As he skirted the shore of the pond through the brush his thoughts were so busy with his discovery that for the time being he quite forgot to keep an eye out for rabbit signs. The illegality of this attempt to catch beaver in a closed season did not impress him at first. He had had nothing to do with game and game laws. They were entirely outside his range of experience. In fact, he failed utterly to grasp the purpose back of the laws and like a great many others he regarded them as a restriction of individual liberty, and a violation as of no very great moment. They were to him very much as the "keep off the grass" signs in the city park.
So it was no shock to the boy to think that his new idol, Pat, should be breaking a law for which he could see no reason. But what did give him a shock was the method employed. This outraged his strong sense of fair play. "It's hitting 'em below de belt. Dey ain't got a chance in de world," he kept saying over and over to himself. "Dey finds de food right by dere houses under de ice where dey ain't looking for no foul blow, and dey helps demselves and gits a knockout widout a show." He could overlook the breaking of the law because it held no meaning for him, but it was hard to reconcile this flagrant outrage on fairness with what he knew of Pat.