"The Lightkeeper's Daughter" is a historical novel by Colleen Coble that intertwines romance and mystery. Set in the late 19th century, the story follows Hannah, the daughter of a lighthouse keeper, who uncovers secrets about her family's past while navigating her own feelings for a local fisherman. As Hannah grapples with her identity and the challenges of her environment, she discovers the importance of love, faith, and resilience. The novel explores themes of redemption and the impact of choices, all set against the backdrop of a rugged coastal landscape that plays a crucial role in the narrative.