When Madalena’s mother died, she left behind a story about a mysterious secret located somewhere in their little hometown of Fatima, Portugal. Madalena thinks the secret is about a great white bird, whose discovery would save her family by giving new life to her bird-watcher father, who is lost in grief. She sets out on a search, along with her little brother Tomas and a boy and girl whose true identities are unknown to her: her fallen guardian angel and a spirit from the other side. In the adventure that ensues, Madalena must grapple with issues of friendship, betrayal, love and faith. And in the end, the secret she uncovers will change her life.