Europe, 2047: the spark catches. Cities hum with EVTOL corridors and drone patrols; algorithms police crowds and still misread the human heart. After a street atrocity in Paris heaves old fault lines open, Nicholas Karapoulos-a Greek-born, London-educated idealist who never meant to lead-steps forward with a vow: Europe can still be saved by memory, law, and courage. His rise collides with a shadowed adversary whose creed is inevitability-demography as destiny, faith as marching order. From Berlin's burning squares to Rome's shattered colonnades and the contested skies above the Channel, barricades become pulpits and truth fractures into chants. Civilians must choose, not between peace and war, but between what must endure and what refuses to yield. Gripping and prophetic, Fall of the Union asks a single, searing question: what do you protect when everything is on fire?