In a peaceful, prosperous African American neighborhood in Los Angeles, Mack Street is a mystery child who has somehow found a home. Discovered abandoned in an overgrown park, raised by a blunt-speaking single woman, Mack comes and goes from family to family–a boy who is at once surrounded by boisterous characters and deeply alone. But while Mack senses that he is different from most, and knows that he has strange powers, he cannot possibly understand how unusual he is until the day he sees, in a thin slice of space, a narrow house. Beyond it is a backyard–and an entryway into an extraordinary world stretching off into an exotic distance of geography, history, and magic.