We sometimes forget the past. Or rather, we do not want to remember it. But sometimes the past refuses to be forgotten. The All-Mother Faust, Discord, and a human named Alder created Equus and all life on it. But they betrayed Alder, sealing him away into the crust of the world. Only for him to escape during the era of Twilight and her friends.

Prompt idea written for Lord Despair of the Write Club.