Nicholas doesn't really know Princess Celestia. Sure, he's met her once or twice, when Twilight was still trying to find a way to get him home. Exchanged pleasantries and what not. But never had he had a real, sit-down conversation with her.
Now, he's been summoned to Canterlot to work as Celestia's advisor. He has no other options but to accept.
Cover art used with permission by Miokomata. Go check them out!
Audio reading of prologue by StraightToThePointStudio. Go check them out!