Leviathan
Scott Westerfeld
 It is the cusp of World War I, and all the European powers are arming up. The Austro-Hungarians and Germans have their Clankers, steam-driven iron machines loaded with guns and ammunition. The British Darwinists employ fabricated animals as their weaponry. Their Leviathan is a whale airship, and the most masterful beast in the British fleet. Aleksandar Ferdinand, prince of the Austro-Hungarian Empire, is on the run. His own people have turned on him. His title is worthless. All he has is a battle-torn Stormwalker and a loyal crew of men. Deryn Sharp is a commoner, a girl disguised as a boy in the British Air Service. She's a brilliant airman. But her secret is in constant danger of being discovered. With the Great War brewing, Alek's and Deryn's paths cross when the airship carrying Deryn is forced to crash-land onto a glacier near Alek's mountain hideout. German perusal forces them to make hasty repairs and takes them both aboard the Leviathan on a fantastical, around-the-world adventure. Meanwhile, a young girl, Deryn Sharp, is staying with her brother Jaspert in London. Her father died in a ballooning accident and her mother and aunts want her to grow up as a proper lady. Deryn dreams of joining the British Air Service and to serve on one of the great airbeasts. In order to do so, she must pretend to be a boy ("Dylan Sharp"). To pass the starting exam, she goes aloft with a Huxley (a combination of jellyfish and hot-air-balloon) to prove her air-worthiness. However, a storm hits while she is aloft, severely tossing Deryn and the Huxley about, and they narrowly survive--she is forced to cut the Huxley loose from its mooring in order to avoid crashing into a nearby building. This results in Deryn and the Huxly being blown out over the North Sea; she is thrilled when she and the Huxley are rescued by the Leviathan, the most famous of the air-beasts, a massive ecosystem comprising many different animals but based largely on a whale. She is inducted into the crew of the Leviathan, and makes friends with the Monkey Luddite Newkirk. The Leviathan's mission is to transport a top British scientist (“boffin”) and a secret package to Constantinople. Deryn is surprised to learn the boffin is a woman, Dr. Nora Barlow, and is afraid Barlow will discover her secret. In the air over Europe, the Leviathan comes under attack from German airplanes. The crew fights back and manages to defeat the planes, but not before the great whale’s hydrogen bladder is severely punctured. The airship crash-lands in Switzerland on the very glacier where Alek’s group is hiding. Alek and Volger witness the crash, but Volger insists they do nothing to interfere, as they will risk giving away their position to the Germans or being captured by the British. Alek is unable to stomach letting the crew of the Leviathan suffer out on the ice, and secretly leaves the fortress to bring medicine to the crew of the fallen ship. The first person he finds is an unconscious Deryn, who had fallen from the rigging during the crash. Alek revives her and claims unconvincingly to be a Swiss villager. Deryn is suspicious of him and sounds the alarm, resulting in Alek’s capture. Alek continues to insist he is just a bystander trying help, but the captain refuses to release him and instead leaves him under Deryn’s charge. The secret cargo brought by Dr. Barlow is revealed to be eggs of some kind, though most were destroyed in the crash. Alek's "family" comes to his rescue, and battle would have erupted between the two if Deryn's quick thinking in bringing Alek to the front and holding him as a hostage hadn't brought everyone to the table to talk under a flag of truce. Realizing their differences are outweighed by their similarities, Alek offers a sizable chunk from their food storage so the ship can replenish its hydrogen supply and take off again. However, as they travel back to the Leviathan, two German zeppelins appear and send out commandos to capture them. Unfortunately, one of the zeppelins escapes, and the Stormwalker is severely damaged by an aerial bomb, making it impossible to stand up and repair. Thanks to the diplomacy of Dr. Barlow and a bright idea from Alek, the two groups decide to combine their technologies and leave together as one group. Alek also admits his true origins to Deryn/Dylan and Dr. Barlow when he realizes he let a few too many things slip. The Austrians dismantle the Stormwalker and use its engines to replace those lost by the Leviathan. The Austrian engines prove to be much more powerful than its previous ones, propelling them quickly away from danger and the deadly Herkules (Clanker Ship). In the aftermath, Dr. Barlow reveals information about a fabricated ship in England that was sold to the Ottoman Empire but then taken back (even though it was paid in full) by Winston Churchill, thus creating rivalry among the British and the Ottomans. The novel closes with the Leviathan continuing its flight towards Constantinople with Alek watching the mysterious eggs that will hatch into some unknown fabricated species.