Justus A. Platt said this quote

Sir Arthur stopped at the bottom of the hill and awaited the charging rider. The horseman halted in front of Sir Arthur and mud flew in all directions.“Who are you?” demanded Sir Arthur. He stared into the masked face and turbaned head of an assassin.Rufus's heart stopped. A gasp escaped his frozen lips and his legs wobbled.Sir Arthur asked again, “Who are you?”The man dismounted and drew from his golden sash a long scimitar. He approached Sir Arthur. The knight lifted his sword and the duel began.