When the Arkansas River had been reached, at the crossing or ford Major Riley made camp, to wait until the caravan returned. The teams were doubled and trebled—twenty, thirty, forty animals to a wagon; and with them all straining and snorting, a dozen teamsters cracking whips and shouting, and the heavy Conestogas careening to their hubs in the quick-sand, the crossing was won.

No Mexican escort had appeared. Captain Bent boldly led on, into Mexico.

This portion of the Santa Fe Trail was especially perilous. Between the Arkansas River and the Cimarron River (which through most of the year was no river at all) there was no water for fifty and sixty miles, except right after rains. The stretch was called the "water scrape." All the five-gallon kegs hanging under the wagons had to be filled, and the teams were hustled day and night in order to get across as quickly as possible.

It was a hot country, of soft sand hub-deep and of wind-swept tracts so hard that the wagon wheels left no trace. Caravans traveled by compass; and even then were likely to toil and wander miserably, with their mules and oxen dying from thirst. The Indians loved to catch a caravan in here. The Kiowas and Comanches frequently lay in wait among the billowy sand-hills.

Thus it came about that the Bent caravan, this July of 1829, was attacked on the very first day out from the Arkansas. It had marched only nine or ten miles. The going was very bad, in the hot, flowing sand. All around arose the sand-hills, shimmering yellow, with the sun beating down out of a blue sky. The wagons were strung in a long straggling line, while mules and oxen, their tongues hanging, tugged hard. The teamsters, their feet blistering in their cowhide boots, their beards and flannel shirts caked with dust, urged manfully.

The sand-hills, fifty feet high, formed a complete circle around this sandy basin here. The caravan had entered by a narrow passage, and was stringing across, for another narrow passage. Whether the passage opened into the country beyond, nobody knew. Trader Lamme and two companions spurred ahead, to find out: a foolish thing to do.

They disappeared among the hollows; were gone not half an hour, when on a sudden, distant gun-shots soundly thinly, and back into sight galloped two of the men, racing full tilt, bare-headed. Following fast there came a drove of other figures—and as if from the very ground, on right and left of the leading wagons, still more figures up-sprung. A chorus of wild whoops echoed.

Injuns!

All the caravan was in confusion. Horsemen rode, teamsters shouted as they grabbed their guns from the seats and swung their whips. Oxen bellowed and jumbled, mules snorted and balked, the herders of the caballada shrieked for help.

"Close up! Close up!"