"Eon" is a young adult fantasy novel by Alison Goodman set in a fictional world inspired by ancient China. The story follows Eon, a 16-year-old boy who dreams of becoming a Dragoneye, a powerful magician who can control the energies of the earth and the sky. However, Eon has a secret - he is actually a girl disguised as a boy in order to enter the male-only Dragoneye training program. As Eon struggles to keep her true identity hidden, she must also navigate the complex political intrigues and rivalries among the Dragoneyes and their apprentices. When a sinister force threatens to disrupt the balance of power in the empire, Eon is thrust into a dangerous mission to protect the emperor and the Dragoneyes from harm. Along the way, Eon discovers her own hidden powers and learns to trust her own instincts and inner strength. "Eon" is praised for its rich world-building, intricate plot, and compelling characters, and has won several awards and accolades in the young adult fantasy genre.