Nothing but the call of time could save them, and they lined up more and more slowly, struggling desperately and praying for the sound of the whistle. Down the lines the spectators followed, cheering hoarsely, and cutting up the soft turf like a huge drove of cattle. There were but two more minutes of play and a scant five yards to make. Old Shack had a cut over his right eye, and a little stream of blood trickled down his mud-stained cheek. He was steaming like a "yoke of oxen," and his canvas jacket was drenched with sweat, one stocking was down over his shoe, and a sleeve of his jersey was gone, showing the huge arm with its corded muscles. He knew well enough that the "touchdown" must come unless something was done, but no good chance did he get until the ball was inside the five-yard line. "Four-twelve-twenty" called out the "quarter back," and the big "senior centre," crouching low against Shack's strong shoulder, snapped the ball back just as he had done a hundred times before that day. He got a bit too low, in fact, for Shack gave him a jerk, and before the little "quarter" could get the ball out of his hands Shack's big paw was on him, rolling him over like a kitten, and before he knew what had happened he had lost the ball, and Shack had it snugly tucked under his arm. How the Sophs cheered, and when a moment later the whistle blew they would have shouldered Shack had he not made it impossible by lying flat on the muddy ground. During these last five minutes Mud had been deserted and well-nigh forgotten, mascot though he was. The crowd had surged up the field where the fierce struggle was going on, and the little fellow was left all alone, with nothing to occupy him but his own thoughts. He could look across to "Billy" on the other side, tied to a post, and alternately barked at him and whined for the friends who had left him. Mud had no chains but those of duty, yet for him they were sufficient. He would very much have liked to follow the crowd, or better still to have had his own little game of football with "Billy" across the way, with neither an umpire nor a referee to keep account of distance or prevent rough play; but here was Shack's precious sweater, and here he was bound to stay. It had been raining too for a little while, and the little fellow was getting cold and wet. He trotted around the narrow limits of his desert island, giving an occasional shiver of discomfort, and wishing in his heart that he was in his own snug place by Shack's warm fireside. The thought of Shack warmed him a bit, despite the cold, and he lay down again, waiting patiently for his master.