Siblings VS. Changelings

This story takes back a thousand years, when a colt named "Anonymous" was born to an Earth Pony family. Despite having the the blood of Earth Ponies on an Apple farm, Anonymous was as white as the clouds above with a black mane and tail. Most unusually, he was born a Pegasus!

Instead of a stetson like his father, Anonymous donned a white fedora and pair of sunglasses on his fourth birthday. And on his Fourth birthday, Anonymous had found an amnestic, baby, filly; he brought her back to his mother. The filly was a Unicorn with light blue fur, a yellow mane and tail, and violet eyes; they named her "Starling Heaven"... not before the father got a heart attack and died.

Three years later, Anonymous had gone to school. He aced every test, but the only subject he really looked forward to learning more and more about was history. His favorite part of history was from a thousand years before his birth, the return of Nightmare Moon, the Crystal Empire, Discord, Tirek, but most of all: The Changeling Invasion of Canterlot.

Three years later, Anonymous graduated from his school and got a Cutie Mark of a brain, symbolising his talent in smarts. Anonymous' mother then signed him up for a junior flight camp in Cloudsdale; Starling for magic school in Ponyville, which happened after Anonymous left for Cloudsdale.

Anonymous had never realised how good he was at flying before his first flight exam, he made it past the exam; completely broke his wings. They couldn't find a way to fix his wings, so they added prosthetic parts. Not only could he fly once again; he flew even better than before!