London, 1399. Crispin Guest is summoned to St Frideswide’s Priory after two nuns are murdered in ways that appear to invoke the Seven Deadly Sins. While he and Jack investigate tensions inside the religious house, England itself moves towards regime change. The exiled Henry Bolingbroke lands with an army to recover his inheritance, threatening Richard II’s throne and forcing Crispin to confront the political choice that once destroyed his own career. Solving the priory murders becomes inseparable from deciding where honour lies when loyalty to a king and loyalty to justice no longer point in the same direction.
The final novel is set during the collapse of Richard II’s rule and the rise of Henry IV, one of the defining dynastic ruptures of late Plantagenet England. Westerson brings Crispin’s personal history full circle: he began the series as a man punished for treason, and he ends it facing another change of allegiance with national consequences. The priory case keeps the intimate detective plot in view while the royal crisis gives the series a historically decisive conclusion.
