An ancient curse collides with modern greed when heavily armed mercenaries lay siege to the Tower of London in David Boito’s Fatal Castle.

Ashley Bellamy, a diamond enthusiast, visits her estranged father Clive–the Tower’s Chief Yeoman Warder–and becomes trapped when ex-bomb disposal expert Richard Bindar leads a brutal heist disguised as a terrorist threat. Their target: the cursed Kohinoor diamond, said to doom any man who possesses it.

With police forces deliberately misdirected and innocent lives at stake, Ashley and Clive must use their intimate knowledge of the fortress’s secret passages and medieval defenses to fight back. Armed with ancient longbows against modern weapons, they turn murder holes and centuries-old tactics against their ruthless enemies.

As the Tower faces its most devastating siege in history, this fractured father-daughter duo must reconcile their past and uncover Bindar’s true motives before the diamond’s curse claims new victims–and London’s greatest fortress falls.