The year is 1913, and thirteen-year-old Alexander has three very different females haunting him. One is the little lame dog with the pink ribbon he found in the barn out back of the house. One is big-eyed, spidery-limbed Blossom Culp, who may have a crush on him, and is in any case the spookiest live girl he's ever met. The other is the even spookier- in some aspects- glowing green girl who appears floating in the barn- as Blossom, in fact, predicted. With the help of Great-uncle Miles, a practical man about hauntings and such, Alexander and Blossom must travel to New Orleans, haunt of the legendary Marie LaVeau, to discover how to rest a spirit left restless far too long.