A powerful and chilling novel of forbidden borders, haunted landscapes and a teenage girl in danger.

'I love this book. Put your life on hold while you finish it' Maggie O'Farrell A suspenseful and chilling novel of haunted landscapes and a teenage girl in danger... Seventeen-year-old Silvie is camping in rural Northumberland with her father and a group of archaeologists, who are attempting to uncover evidence of human sacrifice. As Silvie glimpses the possibility of freedom with the students - new female friendships and a sexual awakening - her difficult relationship with her overbearing father begins to deteriorate. As the feelings of dread build the haunting rites of the past begin to bleed into the present... 'This book ratcheted the breath out of me so skilfully, that as soon as I'd finished, the only thing I wanted was to read it again' Jessie Burton 'An instant classic' Emma Donoghue 'I loved it' Bernardine Evaristo