Atomic Coffin

In a tense Cold War thriller set in December 1984, British spy Heidi Sperling uncovers a mysterious Soviet submarine, TK-15, that has been undetected in the North Atlantic for years before suddenly becoming active. Thrust into a high-stakes mission aboard the Royal Navy’s HMS Viking, she faces the terrifying possibility that something far darker than a typical Soviet experiment has emerged from the depths. As the situation spirals into psychological horror and environmental peril, Heidi must confront the unknown and prevent the submarine’s sinister force from consuming everything.