HMS Truculent is a nuclear-powered, hunter-killer submarine, and one of the most deadly weapon systems in the world. Phil Hitchens is its distinguished British commander - who has broken away from a NATO exercise and embarked on his own darkly vengeful and deadly mission. Shadowhunter is the codename of the desperate sonar search for HMS Truculent, last seen heading for the Kola Inlet where the cream of Soviet sea power lies unsuspecting at anchor. Shadowhunter is Geoffrey Archer's nail-biting, authentic thriller of undersea battle and international tension - a chillingly credible account of the world brought to the brink of catastrophe.