Early on 13 October the Americans began crossing the Niagara at Queenston, a few miles south of Fort George. Brock galloped from Fort George to Queenston, arriving just in time to see the Americans capture the commanding heights and a British heavy gun battery. He sent orders to Sheaffe to bring reinforcements, but before they could arrive he led two frontal assaults against the heights. During the second, he was shot dead. Sheaffe arrived on the battlefield at 2pm. In contrast to Brock's actions, he waited for reinforcements before leading his force on a wide detour to the top of the heights, so as to shield them from American artillery. He then meticulously drew up his force before attacking at 4pm. The Americans, terrified of the Mohawks who had also joined the battle, tried to flee but were trapped against the river, and surrendered. One thousand prisoners were taken, for a cost of 50 casualties.