A lonely art restorer discovers a hidden angelic presence that begins to subtly alter her life and the lives of those around her. Eleanor Garnet, a meticulous and solitary art restorer, finds her quiet existence disrupted when she begins to sense and then see an angel while working on a painting. This celestial being, initially a source of comfort and wonder, gradually becomes a catalyst for change, challenging Eleanor's ingrained isolation and prompting her to confront her past and engage with the world. The narrative explores themes of faith, art, and human connection, set against the backdrop of a London art world that is both beautiful and subtly suffocating.

Salley Vickers' 'Miss Garnet's Angel' is often noted for its gentle exploration of faith and art, weaving a narrative that is both contemplative and character-driven. The novel is praised for its sensitive portrayal of loneliness and the quiet transformation of its protagonist, Eleanor Garnet. Critics frequently highlight Vickers' ability to blend the supernatural with the everyday, creating a story that feels both grounded and imbued with a sense of wonder. The reception generally points to a thoughtful and engaging read that appeals to those who appreciate literary fiction with a touch of the ethereal.