The "Book of Tobit" is a story found in the Deuterocanonical books of the Bible. It follows the life of Tobit, a righteous Israelite who becomes blind and faces various hardships. His son, Tobias, is sent on a journey to retrieve money, guided by the angel Raphael in disguise. Throughout the narrative, themes of faith, family, and divine intervention are prominent. Tobit and Tobias encounter challenges but ultimately find healing and happiness. The book emphasizes the importance of charity and the belief that God watches over those who are faithful.