Halo: Envoy

Set in the Halo universe, this original full-length novel unfolds six years after the Covenant War, focusing on the troubled coexistence of human colonists and the alien Sangheili on the planet Carrow. Amid rising tensions and civil war among the Sangheili, Unified Earth Government envoy Melody Azikiwe faces a dual challenge: broker peace and execute a covert mission to rescue the SPARTAN-IIs known as Gray Team, who have been imprisoned by a vengeful Elite fleetmaster. As conflict escalates, the narrative leads to the emergence of an ancient, formidable threat lurking beneath the planet's surface.