A nameless city stands as a monument to a dead civilization, a kingdom of ponies that predates Equestria. Many have tried to pillage its secrets: Diamond Dogs, Griffins, the early Unicorn Kingdoms, the Grand Army of Neighpoleon – even the ancient Dragons. Few who entered ever returned. What secrets await the Doctor in the long abandoned city of pillars? And who else is attempting to unravel its secrets?

Cover art by Tzelly-El