Since the harsh events in her life marked her childhood, Kier Templar left the city where she was born to live in a caravan. She has lost all contact with her twin brother, until on a trip to a national park in Portugal, Kier disappears without a trace.
Detective Elin Warner arrives at the same park, ready to surrender herself to its vast wilderness, and there she hears about Kier’s disappearance and discovers a mysterious map. The few strangers living in a remote campsite put up barriers to Elin’s questions, and the wild beauty of the park begins to turn menacing.
Elin must untangle the clues to find out what really happened to Kier. But when you follow a trail, you must watch your back…
After the atmospheric SANATORIUM and the chilling RETREAT, Elin Warner finally finds in THE SANCTUARY the answers she has been stubbornly seeking, but at the risk of her own life.