"Thee customs, as you haf so tr-ruly said, ar-re ver' gr-reat bother, Senor Hank. I know thees ver' much, for I haf a br-rother in thee custom house. We ar-re ver' close, my br-rother an' me. I weel see you again, senor. Eet ees good that we get acquaint, weeth so ver' many _milla_ yet to tr-ravel together. _Buenos noches_, senor." "Good night," replied Hank, carefully pulling the unburned wood out of the fire to serve for the cooking of the breakfast. He glanced after the dapper Mexican and grinned, re-roped the pack, and wandered off to join his trapper friends at their fire. "Grease is slippery; an' so is greasers," he chuckled. "Wall, thar's plenty o' time to figger _jest_ what he's arter. Might be cheatin' th' customs, an' then ag'in it might not." CHAPTER X EN ROUTE Tom's duties as a lieutenant were to supervise his column, ride ahead of the train on lookout for possible obstructions or dangers, go on ahead to creeks and see that the banks sloped enough to permit the wagons to take them safely, to hunt out and bridge morasses and quagmires that could not be avoided. If the banks were too steep he and others of the caravan were to ride ahead with axes, shovels, and mattocks and cut a sloping road through them; if a morass or a treacherous creek bed had to be crossed they had to cut great numbers of saplings, branches, and brush and build up a causeway of alternate layers of wood and dirt. This would not take long and if properly done, every wagon could cross in safety. The caravan in movement should have presented a formation of wagons in orderly array, preceded by the captain and officers, flanked at a good distance on both sides by well-armed riders, and followed by a fairly strong rear-guard; but no such ideal formation could be maintained except under the discipline of a military or paid force. The flankers rode far and wide searching endlessly for game and usually wound up with the advance guard, a mile or more ahead. The rear guard dwindled rapidly and soon joined the others far in advance, leaving the crawling wagons entirely unprotected from any sudden attack by Indians who might have lain concealed in one of the numerous prairie hollows.