'Please come. I need your help . . . '
Fiona and Madison have been best friends since childhood, but recently life - and love - has torn them apart.
Still, when Madison sends her an unexpected request for help, Fiona doesn't hesitate to answer the call.
Madison is an archaeologist, working on a dig on a tiny island off the coast of Orkney, far to the north of Scotland. It's January - there are only a few hours of daylight, and the icy wind blows in off the North Sea, warning of a coming storm.
Fiona doesn't mind the elements - she's excited to see Madison, and curious to know what's happening. But when she gets off the ferry, Madison isn't there to meet her - she's missing.
Fiona has no choice but to go to Madison's colleagues for help. But in such a small community, can she be sure one of them isn't responsible? And if they are, is Fiona the only one who knows enough to save her oldest friend?
