A woman disappears under ghostly circumstances, and Inspector Jimmy Perez must separate fact from fiction in Thin Air, the sixth mystery in the Shetland detective series from Ann Cleeves.Now a major BBC One drama, Shetland, starring Douglas Henshall.A group of old university friends leave the bright lights of London, travelling to Shetland to celebrate the marriage of one of their friends to a local. But late on the night of the wedding party, one of them, Eleanor, disappears – apparently into thin air.Detectives Jimmy Perez and Willow Reeves are dispatched to investigate. Before she went missing, Eleanor claimed to have seen the ghost of a local child who drowned in the 1920s. Jimmy and Willow are convinced that there is more to Eleanor’s disappearance than they first thought. Is there a secret that lies behind the myth? One so shocking that many years later someone would kill to protect it?Continue the thrilling, bestselling mystery series with Cold Earth.‘One of Britain's best crime writers’ – Daily Express‘Cleeves is quietly carving out a reputation as the new Queen of Crime’ – Sunday Mirror