In the secret war of 19th-century Europe, Sineus Bielski is the Tsar’s most potent weapon, a memory-chirurgeon who keeps the empire safe. But his duty is shattered when he witnesses a new French mortar that doesn’t just cut memories, but annihilates them, leaving a world-devouring void in its wake. When his own masters forbid him to act, demanding adherence to protocols that are doomed to fail, Sineus faces an impossible choice.
