This is a plausible paradigm. Whether in the worlds we live in, or in the tales of old, or in the stories we tell, a reality like this is in the scope of most people's understandings and beliefs. It's not something the mind instinctively and inherently rebels against as beyond possibility, even if it seems immensely unlikely or strange.

And that brings us to what Merlin told me -- that the magic we possess is how our 'energy' manifests here. Universally. [He taps one finger on her desk, hard, to punctuate the point.] That means we didn't lose our powers coming here. It isn't that werewolves stopped being werewolves and mages stopped being mages. It's that in this reality, this is who and what we are.

[That's the part that he struggles to communicate, almost pleading for her to understand. It's as difficult a concept to grasp as if they woke up one day to a blue sun -- a sun that not only had always been blue, not only would always be blue -- but literally could never have been yellow.]