As she grows through the first years of her life in the Catskill Mountains of New York, a peregrine falcon called Frightful interacts with various humans, including the boy who raised her, a falconer who rescues her, and several unscrupulous poachers, as well as with many animals that are part of the area's ecological balance. In the first years of her life in the Catskill Mountains of New York, a peregrine falcon interacts with several unscrupulous poachers.

Originally published: New York : Dutton Children's Books, 1999.