Robert Tregay is the author of INVASION — a gripping WW2 historical thriller set during the Nazi invasion of Norway in April 1940. Combining the breathless pace of a wartime spy novel with the dark, atmospheric tension of Nordic noir, Invasion is perfect for readers of Robert Harris, Ken Follett and Jo Nesbø. 

Set in occupied Oslo during the coldest winter in living memory, Invasion follows British student Thomas Galtung as he is caught up in a desperate mission to save Norway's gold reserves — while being hunted by ruthless assassins and haunted by a mystery that began years before the war.