Zoro duels Ryuma in Hogback's lab, while Franky guards over the injured Brook. Neither Zoro, nor Ryuma, can gain any advantage over the other, as they keep matching the other's attack. Their attacks quickly destroy the lab, forcing them to escape the room and continue their fierce duel on the roof. As Brook watches on, he comes the conclusion that Ryuma was never taking their fights seriously. After an intense sword fight, during which the entire roof collapses to the ground below, Zoro finally defeats Ryuma using a technique which sets him ablaze. Zoro lands hard on the lip of the roof below. Ryuma manages to land on a higher ledge. Ryuma staggers slightly, then acknowledges his defeat at Zoro's hands. Sheathing Shunsui, Ryuma throws it to Zoro. Ryuma collapses in a gout of flames and Brook's shadow is finally returned to him, to his great joy. Zoro acknowledges Ryuma's skill as a swordsman and says he wishes he could have met Ryuuma before he died. He also agrees to forget the outcome of their fight.