While looking for one of Sir Oswald's prize hawks in the Forest Perilous, Brian finds a trunk with a suit of silver armor, a sword, a red helmet, and shield. He puts the armor on and discovers that it is a perfect fit. He hears travelers being threatened by Sir Oswald's men-at-arms, and comes to their aid, defeating the soldiers without uttering a word. When asked his name, he stays silent to prevent the soldiers from identifying him to Sir Oswald. Hence, he becomes known as "the Silent Knight." He keeps the armor hidden in the Forest Perilous and hides his secret even from Sir Grot.