Wolfe's writing frequently relies on the first-person perspectives of unreliable narrators. He said: "Real people really are unreliable narrators all the time, even if they try to be reliable narrators." The causes for the unreliability of his characters vary. Some are naive, as in "Pandora by Holly Hollander" or "The Knight"; others are not particularly intelligent ("There Are Doors"); Severian, from "The Book of the New Sun", is not always truthful; and Latro of the "Soldier" series suffers from recurrent amnesia.