Clio's Hourglass #3

Clio, Muse of History, conjured an hourglass containing the Sands of Time. Each grain of sand represents an idea or creation inspired by the Muses. If she acted fast enough, Clio could reverse the worst moments of history with a simple rotation of the hourglass. But as the mortal population grew and grew, the sands poured too quickly. So Clio keeps the hourglass guarded, wondering when the Sands of Time will run out ...or if they will be turned on their head.