Goliath by Scott Westerfeld
Deryn and Alek are back in this exciting steampunk adventure set against the backdrop of World War I. This time the Leviathan is sent to Russia to save Nikola Tesla, who has been experimenting in the Siberian wilderness and claims he now possesses the ultimate weapon that will end the war. The weapon is called Goliath and could level cities all over the world by harnessing the Earth’s electromagnetic field.
Deryn and Alek have to see if Tesla’s claims are true or if they are just the ravings of a mad man. This new adventure takes them on a world tour; from Tokyo to Hollywood, from Mexico to New York, with each new location comes new machines or new genetically created creatures. But they will have to discover Tesla’s secrets before he demonstrates his weapon on Berlin.
But Alek discovers a secret Deryn has been keeping from him. Can they trust each other enough to save the world in time?
Goliath is a fun and exciting conclusion to an excellent series. It is appropriate for all ages and highly recommended for adventure lovers.