Returning to Waiilatpu, the best mounted and equipped of the riflemen, and Hall's company among them, were selected for an expedition against the Cayuse Indians, whose exact location was at this time unknown. The object was to bring the Indians to terms by some means, by fighting or otherwise, and recapture the stock stolen from the whites. The expedition started about the 10th of March, 1848, and after a search of ten days or so found the enemy encamped on Tucannon River, about four miles above its confluence with the Columbia. The enemy adopted the ruse of hoisting a white flag, asked for and had a talk with the troops, anti pretended not to belong to the hostile party; but, upon the whites taking charge of the stock of the murdered pioneers, which were herding on the adjacent hills, the wily foe threw off the mask, and began an impetuous attack. The troops, greatly outnumbered, fought on the defensive, marching in retreat, formed in a hollow square, to resist the assaults made on all sides. The first night the captured stock was turned loose. The next morning the attack and retreat continued, and the Indians, as the Touchet River crossing was approached, took possession of it, attempting thereby to cutoff [sic] the retreat of the troops effectually. Here nothing but the most determined charge and fighting drove off the Indians and enabled the whites to cross that river and thus escape threatened extermination.