"Saffy's Angel" is a children's novel written by Hilary McKay. It follows the story of Saffron "Saffy" Lewis, a young girl who discovers her family's past and the importance of her late grandfather's angel statue. Saffy feels a deep connection to the angel and embarks on a journey to find it, learning about love, friendship, and self-identity along the way. The book is part of the Casson family series, which features Saffy's quirky family members, including her artistic brother David and her imaginative sister Rose. Through their adventures, the story highlights themes of creativity, belonging, and the bonds of family.