Debt of Honour Clancy, Tom

Jack Ryan is about to have a very bad day. A Wall Street crash engineered by Japan, a rogue businessman with a personal vendetta, and a military standoff in the Pacific that could ignite World War III. Clancy orchestrates a sprawling techno-thriller where financial warfare bleeds into actual warfare, and Ryan — now National Security Advisor — has to navigate both boardrooms and war rooms while the world teeters. This is vintage Clancy: meticulous military detail, geopolitical chess moves played at breakneck speed, and enough submarines, fighter jets, and satellite surveillance to satisfy any defence nerd. The action builds to one of the most audacious climaxes in the Ryan saga. If you like your thrillers massive in scope with actual stakes, or you're working through the Ryanverse, this is essential. Just clear your weekend — it's a brick.