Kathryn Lasky is the nationally bestselling author of many books for children and adults, including the Newbery Honor Book Sugaring Time; Elizabeth I and other popular books in the Royal Diaries series; and the bestselling epic fantasy series Guardians of Ga'hoole, which became a major motion picture. In Guardians of Ga'hoole, Lasky explores the behavior of owls. Now she uses her extensive research on hawks and the sport of falconry to again render a world that seamlessly blends natural history with fantasy.

The author and her husband, Christopher Knight, live in Cambridge, Massachusetts, and summer on an island off the coast of Maine. There she enjoys watching peregrine falcons soar on the thermal drafts above the cove where she swims.