Magic Street — Orson Scott Card

In a prosperous African American neighborhood in Los Angeles, infant Mack Street is found abandoned in an overgrown park and taken in by a blunt-speaking single woman. Growing up, Mack senses that he is different from most, and knows that he has strange powers. Yet he cannot possibly understand how unusual he is until the day he discovers, beyond a mysterious narrow house no one else can see, an entryway into a magical world. Passing through, Mack is plunged into a realm where time and reality are skewed, a place where his actions seem to have disturbing effects in the "real world."

Whether he likes it or not, Mack has become a player in an epic drama. His reward, if he can survive the trip, is discovering not only who he really is ... but why he exists.