Jack, Ralph and Walt saluted with a wave of their hats and flourish of their lances, and then headed off after them. Their little display of gallantry caused quite a murmur of admiration to run through the crowd. This was increased to enthusiasm when it was seen how easily and well they sat their active little horses.

“Diablo! Those Gringoes can ride!” exclaimed more than one Mexican in evident amazement that any American could sit on a horse at all.

At the starting line the lads dismounted, as they did not wish to impose any more exertion than was necessary upon their ponies. Leaning their lances against the ropes of the course, they gave themselves over to studying intently the methods used by the tilters, some of whom were old hands at the game, or so one would judge by the confidence they displayed.

“By George, those fellows are doing magnificently,” Jack had to admit, as one after another the Mexican contestants dashed down the human-fringed lane and neatly transfixed the ring without bringing the heavy sack around.

The next instant a roar proclaimed that one victim had been struck, and peering down the course the boys could see the one who had failed galloping off, shaking his spear angrily, while his hat hung all awry on his head from the force of the blow the sack had dealt him.

But while everybody was still laughing at the mishap, and addressing all kinds of jocular remarks to the victim, Jack suddenly turned around as he heard a peculiar noise behind him. He was glad he had done so, for as he faced about the figure of a Mexican slipped away in the crowd. The fellow had been standing by the group of lances assigned to the Americans. With a few quick steps Jack reached the implements and found that an attempt had been made to saw one of them through in the middle. The rascal who had attempted the trick, however, had been detected so quickly by Jack’s vigilance that he had not had time to do much more than scratch the tough ash handle.

“Guess I’ll take charge of those lances,” said Jack to himself, and he proceeded to do so.

The next minute Walt was summoned to take his turn, and leaped into the saddle with a bound. Jack handed him a lance, making no mention of what he had discovered, for he had no wish to make his chum nervous.