Over a millennium ago, a young Starswirl the Bearded sought to make a name for himself by creating doorways to other worlds. His work saw him receiving the help of Silver Scepter, a renowned artificer that he would grow very close to throughout their time working together. However, following his self-banishment to Limbo, not many were around to know of what happened to his beloved.

Now in the modern day, with his wanderlust sated, Starswirl has returned to Canterlot and his workshop within the catacombs of the city. Here, he uncovers a journal revealing a lifetime of details regarding the first world that they opened a portal to with a note attached reading, "Love, Silver Scepter." Wrought with strife of his negligence, he now asks that Twilight and her friends go on one final adventure to discover what happened to the mare and possibly set foot into the mysterious world of 'Terra' for the last time before it is lost to Equestria forever.

Cover Art is Starswirl the Bearded by škodadav
Takes place between the destruction of Canterlot in The Ending of the End and Twilight's Coronation in The Last Problem.