Newbery Medalist Avi weaves one of his most suspenseful and scary tales--about a ghost who has to be seen to be believed and must be kept from carrying out a horrifying revenge. The time is 1872. The place is New York City. Horace Carpetine has been raised to believe in science and rationality. So as apprentice to Enoch Middleditch, a society photographer, he thinks of his trade as a scientific art. But when wealthy society matron Mrs. Frederick Von Macht orders a photographic portrait, strange things begin to happen. Horace's first real photographs reveal a frightful likeness: it's the image of the Von Machts' dead daughter, Eleanora. Pegg, the Von Machts' black servant girl, then leads him to the truth about who Eleanora "really" was and how she actually died. Joined in friendship, Pegg and Horace soon realize that his photographs are evoking both Eleanora's image and her ghost. Eleanora returns, a vengeful wraith intent on punishing those who abused her. Rich in detail, full of the magic of early photography, here is a story about the shadows, visible and invisible, that are always lurking near.