Mooncrest is a night guard in Fillydelphia with extremely sensitive hearing. He originally lived in Ponyville with his brothers Thunderlane and Rumble. When he receives a letter from Rumble saying that Thunderlane is sick, he scrambles to get home. But when he runs into trouble on the way, he'll need help from a certain mailmare to get there at all. (Cover image is something I did on MS Paint in five minutes, I'll change it later)