Like two furry whirlwinds the collies spun forward toward each other. They met, upreared and snarled, slashing wolf-like for the throat, clawing madly to retain balance. Then down they went, rolling in a right unloving embrace, snapping, tearing, growling. Lad drove straight for the throat. A half-handful of Knave's golden ruff came away in his jaws. For except at the exact center, a collie's throat is protected by a tangle of hair as effective against assault as were Andrew Jackson's cotton-bale breastworks at New Orleans. And Lad had missed the exact center. Over and over they rolled. They regained their footing and reared again. Lad's saber-shaped tusk ripped a furrow in Knave's satiny forehead; and Knave's half deflected slash in return set bleeding the big vein at the top of Lad's left ear. Lady was wide awake long before this. Standing immovable, yet wildly excited--after the age-old fashion of the female brute for whom males battle and who knows she is to be the winner's prize--she watched every turn of the fight. Up once more, the dogs clashed, chest to chest. Knave, with an instinctive throwback to his wolf forebears of five hundred years earlier, dived for Lad's forelegs with the hope of breaking one of them between his foaming jaws. He missed the hold by a fraction of an inch. The skin alone was torn. And down over the little white forepaw--one of the forepaws that Lad was wont to lick for an hour a day to keep them snowy--ran a trickle of blood. That miss was a costly error for Knave. For Lad's teeth sought and found his left shoulder, and sank deep therein. Knave twisted and wheeled with lightning speed and with all his strength. Yet had not his gold-hued ruff choked Lad and pressed stranglingly against his nostrils, all the heavier dog's struggles would not have set him free. As it was, Lad, gasping for breath enough to fill his lungs, relaxed his grip ever so slightly. And in that fraction of a second Knave tore free, leaving a mouthful of hair and skin in his enemy's jaws. In the same wrench that liberated him--and as the relieved tension sent Lad stumbling forward--Knave instinctively saw his chance and took it. Again heredity came to his aid, for he tried a manoeuver known only to wolves and to collies. Flashing above his stumbling foe's head, Knave seized Lad from behind, just below the base of the skull. And holding him thus helpless, he proceeded to grit and grind his tight-clenched teeth in the slow, relentless motion that must soon or late eat down to and sever the spinal cord. Lad, even as he thrashed frantically about, felt there was no escape. He was well-nigh as powerless against a strong opponent in this position as is a puppy that is held up by the scruff of the neck. Without a sound, but still struggling as best he might, he awaited his fate. No longer was he growling or snarling. His patient, bloodshot eyes sought wistfully for Lady. And they did not find her.