Long ago the bombs rocked equestria, most died. Most but not all. In vault 54 the historians and reenactors made a home for themselves trying to create an idealized version of the past. They all died but one, alden moonlight. A Thestral (bat pony) encased in a changeling cocoon for centuries. Now he must explore postwar Vanhoover to find meaning in his life and try to bring hope back to the wasteland. And perhaps he can finally find a marefriend.