Goliath by Scott Westerfeld

Set against the backdrop of an alternate World War I, this thrilling conclusion to a steampunk trilogy follows the adventures of Alek and Deryn as they navigate a world divided between Clanker and Darwinist factions. The duo embarks on a perilous journey aboard the living airship Leviathan, encountering a host of challenges, including a mysterious inventor with a weapon that could change the course of the war. As secrets unravel and loyalties are tested, Alek and Deryn must confront their own identities and the roles they play in a conflict that could reshape the future of humanity.

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