When Riley comes across a young ghost named Rebecca, Riley soon learns Rebecca's not at all what she sees. The daughter of a former plantation owner, she is furious about being murdered during a slave revolt in 1733. Mired in her own anger, Rebecca is keeping the ghosts who died along with her trapped in their worst memories. Can Riley help Rebecca without losing herself to her own nightmarish memories?

Instead of a fresh start, high school provides more grief and isolation to Echo, whose older sister died a year earlier, but insights gained from Zoe's diary--a fifteenth birthday gift from Zoe's boyfriend--about her sister's life and death change Echo in ways she could have never expected.