A #1 New York Times-bestselling author delivers the riveting conclusion to his masterful trilogy. The tension thickens as Leviathan steams toward New York City with a homicidal maniac on board: secrets suddenly unravel, characters reappear, and nothing is as it seems. Illustrations. The riveting conclusion to Scott Westerfeld's New York Times bestselling trilogy that's sure to become a classic (School Library Journal). Alek and Deryn are on the last leg of their round-the-world quest to end World War I, reclaim Alek's throne as prince of Austria, and finally fall in love. And the love thing would be a lot easier if Alek knew Deryn was a girl. (She has to pose as a boy in order to serve in the British Air Service.) And if they weren't technically enemies. The tension thickens as the Leviathan steams toward New York City with a homicidal lunatic on board: Secrets suddenly unravel, characters reappear, and nothing is as it seems in this thunderous conclusion to Scott Westerfeld's brilliant trilogy.