Long time ago, during the meteor invasion period, through space ventured an enormous rock the size of a mountain, headed straight for earth. It was no ordinary rock, what was kept inside, was a secret which was supposed to be sealed and kept safe from any kind of threat. Finally the rock made impact with earth, an impact was so big that earth shook to its core.
After that moment everything became normal for our planet, that was the moment when life began, slowly but steady. Maybe it was destined or maybe it was just luck, or maybe it was the rock.
Time passed, as asteroids kept hitting earth, bringing with themselves the only thing humans can't live without, water.
Earth's surface cooled down, water was slowly making its way, creating rivers, lakes, seas, oceans so later it can be a place where creatures can live, and that's exactly what happened, it became home for many fish species.
As time passed by, earth changed a lot, first dinosaurs then humans, but the secret still safe inside the earth somewhere waiting to be found.