House of El Book One: The Shadow ThreatWelcome to a brand new vision of one of comics most famous tragedies, from New York Times bestselling author Claudia Gray and illustrator Eric Zawadzki. In this first graphic novel in a trilogy, explore Krypton like never before: through the eyes of two young people on opposite sides of the same extinction level event. Zahn is one of Kryptons elites: wealthy, privileged, a future leader. Sera is one of Kryptons soldiers: strong, dedicated, fearless.