Sarah Sutherland wanted to be an archaeologist but now she is struggling to cope with the demands of work and caring for her elderly father, who has his own secret troubles.

Her fascination with the past still remains, and she feels a special affinity with Alie Gowdie, the Kilgour Witch, who lived in Sarah's cottage until her unjust execution for sorcery during the Civil War.

As Alie and Sarah's stories collide, can Sarah uncover the truth in order to right a centuries old wrong? And what else might modern-day Kilgour be hiding, just out of sight?