Commander O’Shaserra, known as Shadowsun, is the epitome of T'au tactical prowess and strategic brilliance. As the master of the Kauyon metastrategy—the Patient Hunter—she faces her greatest challenge yet. With her forces spread across the dark side of the Great Rift, Shadowsun must respond to a surprise attack on the Startide Nexus wormhole portal by the Death Guard. As hidden atrocities and treacheries are laid bare, the threat of civil war simmers between the T'au and their allies. To stand a chance, Shadowsun will have to improvise, trust her instincts, and confront the unnatural echoes of her empire's own dark secrets