Underground Terror

A long time ago in ancient Equestria, there lived all kinds of animals, even ponies who worked together in friendship and harmony, ruled over by what they called their God.  This God was said  to be a great, underground whale that watched over the land, and there was more than one. They protected and guarded the land by deciding who was good and who was bad. The good were unharmed and were protected by all kinds of danger, but the bad were eaten and killed, never to see another daylight again. Everything from land to the creatures were protected from harms  way ... until a very fateful day.

The gods were supposedly angry and destroyed anything in sight, eating the  innocents and the guilty. The ponies, all of them, left their homes and traveled to  find a new and better home, thus forgetting Equestria. The ponies then tried to find out why the gods were angry and came up with one solution ... the other race did it, the other two pony races angered the gods. From then on  the Pegasi, unicorns, and earth ponies hated eachother from then on.

Back in Equestria, the gods were eating more and more creatures that were innocent and the creatures were sick of it. One race, the changelings, had an idea, they would transform into a God and find out what's wrong. They did so  and found out that the Gods were never protecting anything, they couldn't see or smell, but they can hear  and they hunt by hearing. The Changeling king, king Manti, was furious and wanted these beasts to end, so he thought of a plan to trap these beasts.

With the help of the other creatures they made enough sound to lure all the land  whales into a hard-rock prison that had a sleep spell put on it so the beasts could sleep for millions of years. The problem was not all fell for the trap, only one got away and it lived way underground where it could never harm the topside creatures again.

Some ponies say that every one thousand years, the beast would return to hunt for one day on the topside, learning how everything changes. Others say that the beast is out there right now, choosing to live in the heart of the Everfree forest where  his fellow friends are, protecting them from danger. One pony though, says that the beast is staying near the earths core, waiting for the right moment to return to his home and  feast others once more.