Portal Between Worlds

Scootaloo never imagined her life could be turned upside down so suddenly. After a fight with her friend, she ran away into the unknown on a snowy evening, with no idea where she was headed, until her hooves led her to a sinister place — a cemetery, next to which stood some old warehouses, where she saw a group of suspicious-looking ponies up to no good. Deciding to stop them, the pegasus grabbed a mysterious amulet glowing in the night and tried to hide in the cemetery, where she met a small, ghostly filly. However, Scootaloo was quickly discovered, and during the struggle, the amulet was damaged, causing the pegasus and her new acquaintance to find themselves in a strange, unfamiliar world inhabited by odd, bipedal creatures.

A cover for a fanfic by my good friend LightDragon1988, which tells the story of how the pegasus Scootaloo accidentally ended up in an unfamiliar parallel world.