Bob and Captain Cornell bounded down the long stairway at a breakneck pace, but one which, fortunately, did not succeed in mishap, and emerging upon a rutted dirt roadway on the shaded side of the huge amphitheatre, paused to catch breath and take their bearings.

Through the lucky circumstance of having been on the topmost row of seats, they had been enabled to reach the stairway ahead of Ramirez and Ramon. They had brushed by the guard at the head of the stairs without that barefooted swarthy devotee of the bull fight even being aware of their departure.

The army man was first to reach the outside, and he was taking a rapid survey of the surroundings when Bob came to a halt beside him. Big Bob was still chuckling over the neat way in which he had managed to take a hand in the adventure, knowing well that a moment more and Mr. Hampton would have laid on him an injunction to stay which he would not have cared to disobey, and fully and keenly aware, besides, that right now Jack and Frank were filled with envy of him.

What they saw was a broad straggling roadway encircling the amphitheatre which stood on the edge of town. The last houses of Nueva Laredo lay to their left and some distance away, too far to afford cover in case they wanted to hide while spying on the movements of the two Mexicans who any moment would appear behind them.

Across the roadway, however, were parked hundreds of automobiles whose owners, Americans and Mexicans, were somewhere in the crowd watching the bull fight. Captain Cornell’s roving glance fell on these cars, and he made a quick decision.

“Come on.”

He raced diagonally toward the parked cars, running toward the right in order to get out of the range of vision of anyone descending the stairs.

First casting a quick glance behind him and noting that Ramirez and Ramon had not yet come into view, Bob followed. Captain Cornell ducked in behind the first of the cars, a disreputable member of a universally known family, and halted. Bob was hard on his heels.

“What now?” asked Bob, with a laugh.

Without waiting for the other’s reply he ran an appraising eye over the parked cars. They presented a far different sight from an orderly automobile park in any American city, for they were scattered about the uneven hummocky surface of a sandy field in what looked like inextricable confusion. Nor were any caretakers in sight. As a matter of fact, all male human beings and a good many of the other sex who were anywhere near that amphitheatre were inside of it. Who cared to watch automobiles when he could watch a bull fight, instead!