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 to a conclusion, or whether he found in the excitement of that contest relief from his gnawing loneliness and his poignant longing for his master, the pursuit of Longclaw became his principal business in life next to the finding of food. He trailed the big wildcat in his sleep, fought with him in his dreams; and once, having driven him to take refuge in one of his dens, a leaning oak, hollow for a distance of twenty feet above the ground, Rusty stood guard within the entrance of the hollow for more than five hours before thirst finally compelled him to abandon his vigil.

Summer reached and passed its zenith. In the fierce August heats, when even the languid herons and the tall black-and-white wood ibises of the island ponds and meres seemed to droop and suffer, Rusty rested perforce. It was a struggle then to keep alive, to endure without madness the incessant attacks of the stinging and biting insects from which, when the breeze dropped, escape was all but impossible. Yet morning and evening often found the terrier on the trail again; and with brief interludes the long duel of wits and of nerve between dog and lynx, between the alien invader of the jungle and the big wildcat who had been the jungle's sovereign, continued and became more bitter and more deadly. It was an odd chance which brought the climax.