It is barely possible, however, that there was an old grievance on the beavers' part, which they sought to square when they caught Keeonekh on the lake. When beavers build their houses on the lake shore, without the necessity for making a dam, they generally build a tunnel slanting up from the lake's bed to their den or house on the bank. Now Keeonekh fishes under the ice in winter more than is generally supposed. As he must breathe after every chase he must needs know all the air-holes and dens in the whole lake. No matter how much he turns and doubles in the chase after a trout, he never loses his sense of direction, never forgets where the breathing places are. When his fish is seized he makes a bee line under the ice for the nearest place where he can breathe and eat. Sometimes this lands him, out of breath, in the beaver's tunnel; and the beaver must sit upstairs in his own house, nursing his wrath, while Keeonekh eats fish in his hallway; for there is not room for both at once in the tunnel, and a fight there or under the ice is out of the question. As the beaver eats only bark--the white inner layer of "popple" bark is his chief dainty--he cannot understand and cannot tolerate this barbarian, who eats raw fish and leaves the bones and fins and the smell of slime in his doorway. The beaver is exemplary in his neatness, detesting all smells and filth; and this may possibly account for some of his enmity and his savage attacks upon Keeonekh when he catches him in a good place. Not the least interesting of Keeonekh's queer ways is his habit of sliding down hill, which makes a bond of sympathy and brings him close to the boyhood memories of those who know him. I remember one pair of otters that I watched for the better part of a sunny afternoon sliding down a clay bank with endless delight. The slide had been made, with much care evidently, on the steep side of a little promontory that jutted into the river. It was very steep, about twenty feet high, and had been made perfectly smooth by much sliding and wetting-down. An otter would appear at the top of the bank, throw himself forward on his belly and shoot downward like a flash, diving deep under water and reappearing some distance out from the foot of the slide. And all this with marvelous stillness, as if the very woods had ears and were listening to betray the shy creatures at their fun. For it was fun, pure and simple, and fun with no end of tingle and excitement in it, especially when one tried to catch the other and shot into the water at his very heels. This slide was in perfect condition, and the otters were careful not to roughen it. They never scrambled up over it, but went round the point and climbed from the other side, or else went up parallel to the slide, some distance away, where the ascent was easier and where there was no danger of rolling stones or sticks upon the coasting ground to spoil its smoothness.