The Ghost Knights are the souls of ancient knights that were defending Firewine, cursed to remain in their undead state until they rejoin with the Undead Knight. Their story is told in Poe's epic ballad The Knights of Days Hence which he will gladly recite to you. Poe is found near the middle of the Firewine Bridge. If you do not have the armor they need (see quest below) they say: If you have the armor they say: ...and fade into peaceful oblivion.