In Relativity: Returning Home, Archer A. Grant continues the gripping tale of humanity's leap into the cosmos and the perils of forging alliances in an unforgiving galaxy. After surviving their tumultuous first encounter with the Tartins, Earth's nascent fleet and its crew face new challenges as they journey deeper into space to honor their commitments to the Razuud-a powerful alien ally. Riley 'Ripchord' McCovee, Ramat 'Trap' D'Pol, and the rest of the cast find themselves at the forefront of a mission fraught with danger, as they work to defend the fragile partnership while uncovering new Tartin threats. Amid these struggles, Jennifer Stanza unearths unsettling truths that could destabilize humanity's efforts to survive from within. Maggie 'Face' Lorrent and Leader Darnwich find themselves at odds with their predicaments, struggling to come to terms with their outlook. As Maggie struggles to get home, Leader Darnwich is in search of a new beginning. As their paths mysteriously cross, they must decide whether to kill or help each other. The stakes rise as the Tartins reveal their devastating new weapons, forcing the combined forces of humanity and the Razuud to confront the chilling truth about the technology driving their adversaries and their end goal. With the weight of their worlds on their shoulders, the team must push beyond their limits to face impossible odds-and ensure humanity finds its way home.