Untitled Expanse 9

Leviathan Falls is a science fiction novel by James S. A. Corey, the pen name of Daniel Abraham and Ty Franck, and the ninth and final book of the series The Expanse. The title and cover art were announced by the authors at a virtual fan announcement on September 16, 2020 and the book was released November 30, 2021. The title echoes the title of the initial book in the series, Leviathan Wakes. The book won the 2022 Dragon Award for Best Science Fiction Novel.