• A grieving Irish ex-pat starts a journey on the Camino de Santigo seeking redemption, but finds himself haunted by a past that refuses to be left behind
• Examines the haunting cyclical nature of guilt
• Inspired by a real-life abduction and murder of an American woman who walked the pilgrimage in 2015
• The novel reads as accurately as a guidebook with detailed descriptions of places, artifacts, and culture. All the details in the book are geographically and historically accurate
• Author walked the Camino de Santiago in 2015; her familiarity with the route shows up in her detailed descriptions of the architecture and landscapes, and the underlying uneasiness of having walked alone during a time when there were several reports of attempted abduction
• Author hosts a book blog called She Kills Lit, where she interviews and reviews books by female-identifying authors of thriller and noir

C.S. O'Cinneide is the author of the Candace Starr crime series as well as Petra's Ghost, a semi-finalist in the Goodreads Choice Awards. On her blog, She Kills Lit, she features women writers of thriller and noir. She lives in Guelph, Ontario.

A man's pilgrimage becomes something from his darkest nightmares when secrets arise and ghosts haunt his path.

A woman has vanished on the Camino de Santiago, the ancient five-hundred-mile pilgrimage that crosses northern Spain. Daniel, an Irish expat, walks the lonely trail carrying his wife, Petra's, ashes, along with the damning secret of how she really died.

When he teams up to walk with vibrant California girl Ginny, she seems like the perfect antidote for his grieving heart. But a nightmare figure begins to stalk them, and Daniel's mind starts to unravel from the horror of things he cannot explain.

Unexpected twists and turns echo the path of the ancient trail they walk upon. The lines begin to blur between reality and madness, between truth and the lies we tell ourselves.