“Book of a Thousand Days” is a young adult fantasy novel written by Shannon Hale. The story follows a maid named Dashti who is locked in a tower with her lady, Lady Saren, for seven years as punishment for rejecting a forced marriage proposal. As they struggle to survive in their isolated tower, Dashti records their experiences in a journal, and the two women must confront their fears, desires, and a mysterious, malevolent force that threatens their lives. The book explores themes of resilience, loyalty, and the power of storytelling.