Two of the world's most powerful regional dynasties — House Martell of Sunspear and House Tyrell of Highgarden — have operated in a careful, armed détente for a generation. The Martells deal in intelligence, territory, and unresolved vengeance against the Lannister family for the death of Princess Elia a decade ago. The Tyrells deal in food, finance, and political influence, and are currently deciding who in Washington to back. When Oberyn Martell, the family's most dangerous diplomat, is sent to the capital on a diplomatic mission that is actually an assassination contract, and Margaery Tyrell begins her calculated ascent through the political heir's social circle, both families' plans begin to intersect with lethal results.
