"Angelfall" is a young adult fantasy novel by Susan Ee that is set in a post-apocalyptic world where angels have descended, wreaking havoc on Earth. The story follows a young girl named Penryn, who struggles to protect her family amidst the chaos. After a chance encounter with a wounded angel, she becomes entangled in the conflict between humans and celestial beings, setting off a chain of events that will change her life forever.
The narrative explores Penryn's determination to rescue her kidnapped sister, who has been taken by the angels. Her journey leads her to an unlikely alliance with the injured angel, Raffe. Together, they navigate a dangerous landscape filled with both human and angelic threats, unearthing hidden strengths and forming a complex bond amidst their trials.