While there, he heard that a gang of those desperadoes so frequently the nuisance of a new country had formed a conspiracy to murder and rob two wealthy citizens whom they had volunteered to accompany over the Trail to the States. The caravan was already many miles on its way when Carson was informed of the plot. In less than an hour he had hired sixteen picked men and was on his march to intercept them. He took a short cut across the mountains, taking especial care to keep out of the way of the Indians, who were on the war-path, but as to whose movements he was always posted. In two days he came upon a camp of United States recruits, en route to the military posts in New Mexico, whose commander offered to accompany him with twenty men. Carson accepted the generous proposal, by forced marches soon overtook the caravan of traders, and at once placed one Fox, the leader of the gang, in irons, after which he informed the owners of the caravan of the escape they had made from the wretches whom they were treating so kindly. At first the gentlemen were astounded at the disclosures made to them, but soon admitted that they had noticed many things which convinced them that the plot really existed, and but for the opportune arrival of the brave frontiersman it would shortly have been carried out. The members of the caravan who were perfectly trustworthy were then ordered to corral the rest of the conspirators, thirty-five in number, and they were driven out of camp, with the exception of Fox, the leader, whom Carson conveyed to Taos. He was imprisoned for several months, but as a crime in intent only could be proved against him, and as the adobe walls of the house where he was confined were not secure enough to retain a man who desired to release himself, he was finally liberated, and cleared out. The traders were profuse in their thanks to Carson for his timely interference, but he refused every offer of remuneration. On their return to Santa Fe from St. Louis, however, they presented him with a magnificent pair of pistols, upon whose silver mounting was an inscription commemorating his brave deed and the gratitude of the donors.