Alexander the Great's death in Babylon that fateful day in June 323 BC triggered an unprecedented crisis. Within a couple of days, Macedonian blood had stained the walls of the chamber in which he died. Within a couple of weeks, Babylon had witnessed the first siege of the post Alexander age. Within a couple of months, a major revolt had erupted on mainland Greece. Within a couple of years, theatres of conflict had arisen across the length and breadth of what was once Alexander's empire. From a Spartan adventurer attempting to forge his own empire in North Africa, to a vast horde of veteran Greek mercenaries heading home from ancient Afghanistan. From a merciless, punitive campaign against some of the most infamous brigands of the time to a warrior princess raising an army and pressing ahead with her own power play during this ancient Game of Thrones. What followed Alexander's death was an imperial implosion. This book attempts to explain why it happened.