Heart of Stone

From Tardis Wiki, the free Doctor Who reference
You may be looking for the real-world novel.

Heart of Stone was a novel in the Melody Malone Mysteries series. An excerpt featured Melody looking at a statue in an art gallery titled She Weeps, which Melody suspected wasn't sculpted by anyone. "Some" attributed the origin of the stories of the Weeping Angels to the Melody Malone novels such as this. (PROSE: The Secret Lives of Monsters)