“It hasn’t a place in jurisprudence, Nan,” said Littlefield, “especially in re the district attorney’s duty. I’ll promise you that the prosecution will not be vindictive; but the man is as good as convicted when the case is called. Witnesses will swear to his passing the bad dollar which I have in my pocket at this moment as ‘Exhibit A.’ There are no Mexicans on the jury, and it will vote Mr. Greaser guilty without leaving the box.”

The plover-shooting was fine that afternoon, and in the excitement of the sport the case of Rafael and the grief of Joya Treviñas was forgotten. The district attorney and Nancy Derwent drove out from the town three miles along a smooth, grassy road, and then struck across a rolling prairie toward a heavy line of timber on Piedra Creek. Beyond this creek lay Long Prairie, the favourite haunt of the plover. As they were nearing the creek they heard the galloping of a horse to their right, and saw a man with black hair and a swarthy face riding toward the woods at a tangent, as if he had come up behind them.

“I’ve seen that fellow somewhere,” said Littlefield, who had a memory for faces, “but I can’t exactly place him. Some ranchman, I suppose, taking a short cut home.”

They spent an hour on Long Prairie, shooting from the buckboard. Nancy Derwent, an active, outdoor Western girl, was pleased with her twelve-bore. She had bagged within two brace of her companion’s score.

They started homeward at a gentle trot. When within a hundred yards of Piedra Creek a man rode out of the timber directly toward them.

“It looks like the man we saw coming over,” remarked Miss Derwent.

As the distance between them lessened, the district attorney suddenly pulled up his team sharply, with his eyes fixed upon the advancing horseman. That individual had drawn a Winchester from its scabbard on his saddle and thrown it over his arm.

“Now I know you, Mexico Sam!” muttered Littlefield to himself. “It was you who shook your rattles in that gentle epistle.”

Mexico Sam did not leave things long in doubt. He had a nice eye in all matters relating to firearms, so when he was within good rifle range, but outside of danger from No. 8 shot, he threw up his Winchester and opened fire upon the occupants of the buckboard.

The first shot cracked the back of the seat within the two-inch space between the shoulders of Littlefield and Miss Derwent. The next went through the dashboard and Littlefield’s trouser leg.