"The way the Rider flourished his sword afterward- spinning it in a quick circle by his side- suddenly seemed familiar to Eragon, as did all his preceding swordsmanship. He stared with growing horror at his enemy's hand-and-a-half sword, then back up at the eye slits of his mirrored helm, and shouted, "I know you! He threw himself at the Rider, trapping both swords between their bodies, hooked his fingers underneath the helm, and ripped it off. And there in the center of the plateau, on the edge of the Burning Plains of Allagaesia, stood Murtagh."