Death in a High Latitude

When the deputy chairman of a world-leading oil company gets kidnapped in Hamburg, Peter Blair is urgently called in to lead the rescue mission. The captured Dr Braunschweig is a wealthy and powerful man, and a sizeable ransom demand seems certain. So it seems very strange when all the kidnappers desire in exchange for their hostage is a certain 17th Century Arctic map. But when the map is suddenly reported missing from its museum in Cambridge, it becomes clear there is much more at stake than a