[Rainbow's Crack in the Sky - http://www.fimfiction.net/story/10350/Elements-of-Harmony---Turn-it-Up]

In a world of flowing magic, a perfect 10 on the scale measuring magical performance starts tapping into the stream of flowing magic. But what IS this river of magic? And why does it flow so fast inside Twilight?

Following the pattern of Rainbow's discovery of her hidden powers, Twilight, with help from Celestia's lies, and one... peculiar relative of the princess, the unicorn joins Rainbow Dash on the quest to take the power of the Elements up another notch.

In a perfect day, almost made for flying, Rainbow Dash positions her new, custom-made headset, and thrusts forward into the open sky. The music pumping in her veins, Rainbow discovers a new ability that she never thought a pegasus could posses.

Her new discovered ability, or more the process of finding it, once again brings the Elements of Harmony together, the Crack in the Sky triggering a reaction inside every pony of the Six Mane, bringing forth the improvement of the Elements.

In the wake of events triggered by the return of Nightmare Moon a sudden change in the Tidal Wave Control Facility working policy sends hundreds of workers back to their birth-places, as now they need less personnel, given the help provided by Luna moving the moon. One of their employees, Sea Blaze, returns to Ponyville after 15 years of absence. After a short visit to his cousin, Pinkie Pie, where he will stay from now on, at least until he finds a place worth living in, he takes off to set things straight with the skies of Ponyville. Whilst flying over the village, peaking down at his soon-to-be-neighbours, Sea Blaze crashes into none other than Derpy, who he later remembers as his only childhood friend, and the one he couldn't help but miss and love, all those years. What is going to happen now? Will Sea Blaze get along with Derpy after all this years of absence? And what's the real secret between the personnel firing over at the Tidal Wave Control facility after all?