In this fourth Shetland Islands book, Detective Inspector Jimmy Perez brings his fiancée home to Fair Isle. But when a body is found at the island's bird observatory and a terrible storm cuts Fair Isle off from the rest of the world, Perez must solve the murder quickly before the killer strikes again.

"Ann Cleeves is back with the sixth book in her Shetland series featuring Inspector Jimmy Perez, whom readers will remember from Raven Black, White Nights, Red Bones, Blue Lightning, and Dead Water. A group of old university friends leave the bright lights of London and travel to Shetland to celebrate the marriage of one of their friends. But, one of them, Eleanor, disappears--apparently into thin air. It's mid-summer, a time of light nights and unexpected...