Twelfth and last in my series of upcoming fanfics — scheduled for release beginning in September — about the Dr. Who’s adventures in Equestria. In this rather grand finale, the Doctor attempts to diagnose some very odd behavior from the TARDIS and ends up discovering an old foe inside the walls, leaving the estranged Cutie Mark Crusaders, grown distant after years spent apart, to brave a diabolical Time Lord death trap known as the Game of Rassilon and save the world as they know it.