Sarah Moss' debut novel isn't quite the ultra-frightener the broadsheets would have you believe, but it is an eerie and satisfying read. The narrative conceit is first-rate: six archaeologists are on a dig in Greenland when a killer plague sweeps the planet, leaving them isolated...so they hunker down in the Norse farmhouse they were excavating, get thoroughly spooked out and write a bunch of letters to their (potentially now dead) loved ones. These letters, which actually comprise the novel, chart the archaeologists' descent into superstition and panic and the reader is left to decide whether they are going genuinely mad or actually dealing with the paranormal...admittedly proceedings get somewhat creepy - mainly due to Moss' taut style. The book is short (less than 300 pages), understated and deeply engaging.