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.
The district attorney hustled Nancy out of the buckboard to the ground. She was a little pale, but asked no questions. She had the frontier instinct that accepts conditions in an emergency without superfluous argument. They kept their guns in hand, and