Three miles from Dawson something did happen. To Smoke's surprise, Big Olaf rose up and with oaths and leather proceeded to fetch out the last ounce of effort in his animals. It was a spurt that should have been reserved for the last hundred yards instead of being begun three miles from the finish. Sheer dog-killing that it was, Smoke followed. His own team was superb. No dogs on the Yukon had had harder work or were in better condition. Besides, Smoke had toiled with them, and eaten and bedded with them, and he knew each dog as an individual, and how best to win in to the animal's intelligence and extract its last least shred of willingness. They topped a small jam and struck the smooth-going below. Big Olaf was barely fifty feet ahead. A sled shot out from the side and drew in toward him, and Smoke understood Big Olaf's terrific spurt. He had tried to gain a lead for the change. This fresh team that waited to jerk him down the home stretch had been a private surprise of his. Even the men who had backed him to win had had no knowledge of it. Smoke strove desperately to pass during the exchange of sleds. Lifting his dogs to the effort, he ate up the intervening fifty feet. With urging and pouring of leather, he went to the side and on until his lead-dog was jumping abreast of Big Olaf's wheeler. On the other side, abreast, was the relay sled. At the speed they were going, Big Olaf did not dare the flying leap. If he missed and fell off, Smoke would be in the lead and the race would be lost. Big Olaf tried to spurt ahead, and he lifted his dogs magnificently, but Smoke's leader still continued to jump beside Big Olaf's wheeler. For half a mile the three sleds tore and bounced along side by side. The smooth stretch was nearing its end when Big Olaf took the chance. As the flying sleds swerved toward each other, he leaped, and the instant he struck he was on his knees, with whip and voice spurting the fresh team. The smooth pinched out into the narrow trail, and he jumped his dogs ahead and into it with a lead of barely a yard. A man was not beaten until he was beaten, was Smoke's conclusion, and drive no matter how, Big Olaf failed to shake him off. No team Smoke had driven that night could have stood such a killing pace and kept up with fresh dogs--no team save this one. Nevertheless, the pace WAS killing it, and as they began to round the bluff at Klondike City, he could feel the pitch of strength going out of his animals. Almost imperceptibly they lagged, and foot by foot Big Olaf drew away until he led by a score of yards.