When a failed assassination attempt threatens the fragile peace between the Kingdom of the Isles and the Empire of Kesh, two royal brothers must navigate a treacherous diplomatic mission to prevent a full-scale war. Prince Borric and Erland conDoin are thrust from the relative safety of their father’s court into the alien, high-stakes environment of the Keshian capital. Tasked with representing their father, Prince Arutha, at the Empress’ jubilee, the twins face internal political machinations and the shadow of the Nighthawks, a lethal brotherhood of assassins. The narrative follows their maturation as they confront the physical dangers of travel and the complex, often deadly, social codes of a foreign empire.

This work is widely regarded as a pivotal expansion of the Riftwar Cycle, shifting the focus from the grand-scale magical conflicts of earlier entries to a more grounded, character-driven narrative. Readers often highlight the effective development of Borric and Erland as they grapple with the burdens of their royal lineage. The setting of Kesh is frequently praised for its exotic detail and the depth of its political complexity, which provides a fresh backdrop for the series. The novel is generally seen as a successful bridge that maintains the established tone of the saga while introducing new, more intimate stakes for the central characters.