Nimbus, a pegasus pony with a mechanical wing, goes to the mysterious underwater city of Rapture that his adopted little sister had gone to with his co-worker, and close friend. However, he finds that the city is slowly falling apart, and he and his shy companion have to depend on what can sometimes hurt the most: friendship. They will soon learn that a new kind of magic is rising, but will it be able to trump the Magic of Friendship?

This is a Bioshock/MLP crossover story. It will include:
-Aspects of both Bioshock 1, 2, and Infinite.
-An original story that fits the boundaries of both worlds. (Hopefully)
-And more! (no spoilers here)