(2) YA Leviathan Trilogy series. Illustrated by Keith Thompson. In this satisfying trilogy ender (Leviathan, Behemoth), Alek and Deryn wrestle with their forbidden feelings for each other while trying to stop the war. Westerfeld has meticulously crafted his alternate history of World War I, bringing it to a hopeful if not entirely peaceful ending. Detailed black-and-white illustrations visually capture the book's crucial moments, steampunk machinery, and fabricated beasts.

Reviewer: Cynthia K. Ritter | Horn Book Magazine Issue: November, 2011

(2) YA Leviathan Trilogy series. Illustrated by Keith Thompson. Deryn and Alek join forces with a revolutionary group attempting to overthrow the sultan and save the Leviathan from destruction. Along the way, they discover answers to questions from the previous series entry. Steampunk master Westerfeld provides plenty of action, humor, and intrigue while building his alternate WWI history. Thompson's illustrations effectively clarify the appearances of Westerfeld's invented machines and creatures.

Reviewer: Cynthia K. Ritter | Horn Book Magazine Issue: November, 2010

(2) YA Leviathan Trilogy series. Illustrated by Keith Thompson. Westerfeld's new series features a mix of alternative history and steampunk. As WWI breaks out, Prince Aleksandar and his advisers flee to the Swiss Alps. Meanwhile, Deryn Sharp, disguised as a boy, is aboard the British airship Leviathan, which crashes near Alek's estate. As the two meet and begin the complicated dance of diplomacy, the story and characters come to life.

Reviewer: Jonathan Hunt | Horn Book Magazine Issue: November, 2009