Left Behind: The Cahill Ghost

Thirteen-year-old Lettie Cahill goes to church and sees her family rising from coffins beside the pulpit. Her primeval scream goes unheard, and she has a chilling realization: she is dead, too. While navigating the eerie in-between of her past and present, Lettie develops skills needed to make herself known to her friends, and to her aunt who lives in a house that was once a part of the underground railroad. There, she meets two ghosts and, with their help, pieces together the final moments of her life.
What she thought was an accident, was something far more horrifying: she and her family had been murdered. Driven by rage, fierce determination, and quiet power, she brings her murderers to justice.  Warning: Lettie does a good job of turning paranormal skeptics into believers.