One body. One cold case. One landscape that remembers everything. In the ancient limestone plateau of the Burren, where the rock holds its silence, a man is found dead at the foot of a cliff. Dr Barry O'Donnell -- world-renowned geneticist, Nobel Prize candidate -- was last seen setting out alone on a hiking trail above Eagle's Rock. The evidence points to an accident. Then to suicide. Then to something else entirely.

Detective Liam Connors and his new partner, Detective Rachel Burke, are assigned the case. Connors reads landscapes the way Rachel reads people. Together they make an unlikely partnership -- and an unusually precise one. But the Burren keeps more than one secret. Rachel arrived in Galway carrying a cold case that has haunted her since she first read it -- a nineteen-year-old girl found dead at Blackhead Lighthouse on the night of her debs. Ten years ago. No conviction. No closure.