In 1915, eleven-year-old Josie Clifford lives in a home in Edwardstown with her little sister, their young tutor, and their mother, a psychic medium celebrated and feared by their community. In the summer of 2015, twelve-year-old Alec Frost moves into the same Edwardstown home with his mother. One day, Alec discovers a hand-painted spirit board in a forgotten drawer in the old house. He uses the board one night and accidentally contacts Josie and her sister in 1915.

Over the next few spirit board sessions Josie and Alec realize they are living in the same house a century apart, and they form a close friendship. When Josie’s mother discovers what Josie’s been up to, she becomes intent on using what Alec knows to further her own reputation. Alec must use his knowledge from 2015, and what he finds out about the girls, to help save them from their cruel mother.