They bathed and swam and dived from the first of May until the autumn came and gave the water such a sharpness that they left it numbed and with chattering teeth, and they began at five in the morning and kept it up late into the night. They lived in the water, and were rather more at home in it than they were on the streets. The workmen in the brick-yard never interfered with them, because the boys helped them in piling the bricks and in unloading the scows and loading the carts; and the police could never catch them, for the reason that the boys always kept a part of the gang posted as sentinels in the yard. Mooney and Tommy Grant were easily the best swimmers in the crowd. Tommy was four years younger than the leader, and small and consumptive-looking; but he was absurdly strong for his size, and his body was as hard and muscular as a jockey’s. The trouble began between the two at the swimming-match at Harlem for all comers, where they both entered for the one-mile race with a turn. The Harlem boys were not in it from the first, and the two down-town boys led all the others by a hundred yards. “The little fellow,” as Tommy was called by the crowds on the shore, was the popular favorite; and the crowd was delighted when he came plunging in ahead, swimming so much under water that only one bare shoulder and revolving arm told where he was. Buck Mooney, the leader of the gang, was a bad second and a bad loser as well. He swore a great deal when his backers pulled him out of the water, and gave every reason for Tommy’s success, except that Tommy could swim faster than he could. When Tommy appeared around the streets the next day with the big gold medal on his coat, and with the words “Champion of the East River” blazoned on it, Mooney felt worse than ever, and grew so ugly over it that some of the gang soon turned against him, and his hold over them disappeared. Little Tommy took his place without any formal election, and Mooney sulked and said unpleasant things about him behind his back. They never came to blows, but they both grew to hate each other cordially,--principally through the stories their friends told of each to the other, as friends, true friends, are found to do, in all classes of society. So the breach grew very great and the gang was divided and lost its influence. One faction would refuse to act as sentinel for the other, and each claimed the meeting-place. On the whole, it was very unpleasant, and most unsatisfactory to those who loved peace. It was evident that something must be done; either the gang must separate into two crowds or reunite again under one leader. It was a foolish, dare-devil young Irish boy that suggested how this last and much-desired result could be accomplished. There was a big derrick at the end of the wharf to lift the buckets of coal from the scows, when the place was used for a coal-yard.