Cover art
Westerfeld, Scott. Leviathan. Simon & Schuster/Simon Pulse 2009.

Westerfeld, Scott. Leviathan Series
Summary: An alternative World War I between the Darwinist U.K., mechanist Germany, and others.
Series note: Trilogy including Leviathan, Behemoth, and Goliath.

Cover art
Westerfeld, Scott. Leviathan. Simon & Schuster/Simon Pulse 2010.

Westerfeld, Scott. Leviathan
Series note: First volume of the Leviathan Series.
Published: Simon & Schuster/Simon Pulse 2009 (1416971734BUY), 2010 (1416971742BUY); Simon & Schuster UK 2009 (1847385192, 1847386520), 2010 (1847386741); Thorndike 2010 (141042572X).
Original in: English.
Translation: French by Guillaume Fournier as Léviathan, Jeunesse 2010 (226619416X).
Translation: German by Andreas Helweg as Leviathan - Die geheime Mission, cbj 2010 (3570139697).

Cover art
Westerfeld, Scott. Behemoth. Simon & Schuster/Simon UK 2010.
Cover art
Westerfeld, Scott. Behemoth. Simon & Schuster/Simon Pulse 2010.

Westerfeld, Scott. Behemoth
Series note: Second volume of the Leviathan Series.
Published: Simon & Schuster UK 2010 (184738675X), 2011 (1847386776), Simon & Schuster/Simon Pulse 2010 (1416971750BUY).

Westerfeld, Scott. Goliath
Series note: Third volume of the Leviathan Series.
Published: Simon & Schuster/Simon Pulse 2011 (1416971777BUY); Simon & Schuster UK 2011 (1847386784, 1847386792).