There might be more to that egg-shaped rock then we might think; When the four Pie sisters looked underneath Holder's Boulder, it turned out it hid a pit, a pit that led to the arena gladiators had traveled to long ago to appease their gods and avoid their retribution. Only four warriors made it back alive, and neither of these four earth ponies are those four heroes. …At least not the heroes the arena and its guardians had expected. They stumbled upon a strange new world, and are now forced to fight for their lives.