Scotland, 1930: Agatha Christie is getting married. She invites fellow members of the Detection Club to the windswept Isle of Skye for a quiet break while the banns are read. But tranquillity proves elusive when the formidable Lord Blackwood, leader of a hunting party sharing their lodge, vanishes from the moors. Sharp-eyed assistant to the Detection Club secretary, Eliza Baker, suspects foul play as the strange occurrences pile up: a mysterious grave in the churchyard, a missing rifle, and late-night excursions across the rugged island. There may be no body ? yet ? but someone at Dunmara Lodge is hiding a deadly secret. As a storm cuts them off from the mainland, Eliza and her friend Theo must navigate lies, half-truths, and a treacherous landscape... but can they uncover the killer in the stalking grounds? or will the moors keep their secrets forever?
