Humans I need not necessarily your flesh to multiply but your brains to think rigorously, strategically artfully a way to tear down your Tower of Babel painstakingly and indifferently built from the bones and blood of a few amongst your kind now as my mercenaries be enslaved suffer from undiagnosable symptom called Murderous On clock but not grid they gather be summoned by the cry of their ancestors' resentment spill unto this Earth I breed unto your downfall I feed For I come in greater numbers I am Legion
Recorded by geological strata, a highly advanced civilization was annihilated by a pandemic virus in a form failed to be predicted by its victims, turning healthy intelligent individuals to murderous ones who have the capacity to cover up their crimes, which allows them to slay many before being executed by their social system or their peer victims. (2 interesting facts can be discovered from this translation of the testimony left by the virus "mastermind": 1. Its self consciousness exists in every and none of its copies, no matter the population. 2. it has no concept of time.)