At this pace they all go, only at intervals drawing in to a walk, to breathe their blown steeds for a fresh spurt.

Even after night has descended they continue on, a clear moonlight enabling them to lift the trail.

As next morning’s sun breaks over the Llano Estacado they descend its western slope into the valley of the Rio Pecos.

Traversing its bottom, of no great breadth, they reach the crossing of the old Spanish trail, from Santa Fé to San Antonio de Bejar.

Fording the stream, on its western bank, they discover signs which cause them to come to a halt, for some time perplexing them. Nothing more than the tracks of the troop they have been all the while pursuing, which entered the river on its left side. Now on its right they are seen the same, up the sloping causeway of the bank. But on reaching the bottom, a little aback from the water’s edge, the trail splits into two distinct ramifications, one continuing westward towards the Sierras, the other turning north along the stream. The first shows the hoof-marks of nigh forty horses, the second only ten or twelve.

Unquestionably the Mexican colonel had here divided his troop, the main body proceeding due west, the detachment striking up stream.

The route taken by this last would be the old Spanish road for Santa Fé, the first party proceeding on to Albuquerque.

For a time the pursuing Texans are at fault, as foxhounds by a fence, over which Reynard has doubled back to mislead them. They have halted at the bifurcation of the trails, and sit in their saddles, considering which of the two they should take.

Not all remain mounted. Cully and Wilder have flung themselves to the ground, and, in bent attitudes, with eyes close to the surface, are scanning the hoof-marks of the Mexican horses.

The others debate which of the two troops they ought to take after, or whether they should themselves separate and pursue both. This course is opposed by a majority, and it is at length almost decided to continue on after the main body, which, naturally enough, they suppose to have Uraga at its head, with the captives in keeping.