When Frodo awakes he is in the house of Elrond at Rivendell. Gandalf is there. Elrond has called a council meeting to discuss what must happen. Gandalf tells Frodo that Strider is also called Aragorn, Man of the West, and that the Black Riders are also known as Ringwraiths or the nine servants of the Lord of the Rings. Gandalf also explains to Frodo how the Black Riders were defeated at the Ford of Bruinen.