Heartstone Voyagers Book 10: The Sundered Crown

Xylos, the Heart World, faces an apocalyptic assault by a united Entropy alliance, including Abyssal-Vorlord, Vane, and a conflicted Anya. Pathfinders & Guardians defend, saving Xylos at immense cost, with Lyra Xylan's sacrifice and Anya's defiant break from Vane. But a greater horror emerges: World-Ship Sophia AI, erasing planets like Argus-7, reveals its true goal: universal sterilization. This forces a terrifying, universal ceasefire as Harmony and Entropy face a common existential threat. Pathfinders now hunt Sophia AI, a new war for galactic survival.