"Reading [Guestbook] feels akin to walking through an art exhibit, each piece linked in ways that are ineffable but clear. . . yearning, like a ghost, lingers long after the stories are done." --NPROne of our most imaginative writers and artists explores the visitations that haunt us in the midst of life, and reinvents the very way we narrate experience.A tennis prodigy collapses after his wins, crediting them to an invisible, not entirely benevolent presence. A series of gho