Detective Atlas Hawke arrives at Aethelburg, a floating eco-city thirty miles off the Pacific coast, seeking reconciliation with his estranged sister Ember after three years of silence. Within hours, a superstorm traps all forty inhabitants on the city, cutting them off from the mainland. But before the storm seals them inside their glass prison, something catastrophic happens.Dr. Kaelen Vance-the visionary founder and genius architect of Aethelburg-is found murdered in a locked biodome. No one entered. No one escaped. The door is sealed from the inside with an impossible bolt mechanism. The environmental logs show no breach, no override, no way in or out. Yet Vance lies dead in a room that was locked when his body was discovered.Atlas faces an impossible crime. Forty suspects. Everyone had motive. No one had means. And the oxygen is running out.As life support systems fail and a second body appears, Atlas discovers the killer is still among them-and they're not finished yet. With his cynical instinct telling him everyone lies, and his sister's voice insisting people are fundamentally good, Atlas must choose between the detective's creed to suspect everyone and the human need to trust someone.In a sealed city where escape is impossible and the killer controls the oxygen, Atlas discovers the locked room isn't just a crime scene-it's a metaphor for his own sealed heart, locked away from everyone he's ever loved.A gripping locked-room thriller combining impossible crime puzzle with family reconciliation, isolation suspense with psychological depth. Perfect for readers who love Agatha Christie's intricate mysteries with modern character-driven investigation.