* The Silverwing series: This series follows the adventures of a colony of bats, exploring themes of friendship, courage, and the power of nature. It is often cited as one of Oppel's most popular and successful works.
* The Airborn series: This series blends fantasy and historical fiction, focusing on a boy who discovers he has the ability to fly in a world where airships are the primary mode of transport.
* The Darkest Light series: This series follows the adventures of a young girl and her brother, who discover a world of magic and danger.
Oppel's writing is characterized by:
* Strong characters: His characters are often relatable and engaging, facing real challenges and demonstrating resilience.
* Intriguing plots: Oppel skillfully crafts imaginative and exciting stories that keep readers on the edge of their seats.
* Vivid world-building: He creates detailed and believable worlds, filled with unique creatures and fantastical elements.
In addition to his children's fiction, Oppel has also written for adults, including the novel "The Last Watchman of Old Cairo". His work has been translated into numerous languages and adapted for television and film.