The only difference in this AU is that Grillby’s serves the Hotland Casino. It has more of a faux-fancy Vegas-y kind of atmosphere. A lot of black furniture, blue neon, and white lighting fixtures that don’t actually do very much.
Just picture it: One day Ragnor shows up again/gets found/whatever. Point is he’s alive and he shows up at Magnus’ flat and this scrawny eight year old warlock with blue skin and ram’s horns answers the door and Ragnor is just so confused and in the background he hears an exasperated Alec chastising Little One for opening the door without waiting for him.
Ragnor is incredibly confused because as far as he knows there is absolutely no reason for there to be a kid in Magnus’ apartment. Little One is confused because he knows about his Daddy’s brother that died in the war, and yet here he is looking equally confused. Then Ragnor gets even more confused because this Shadowhunter walks up and he looks totally at home there, but this is clearly still Magnus’ loft because the currently neon furniture SCREAMS Magnus. And now Alec is confused because, what the hell, Ragnor was supposed to have died nearly ten years ago now.
So everyone is just standing there with zero idea of how to handle the situation and after a minute Little One announces he’s gonna go make some tea and asks what kind Ragnor wants. So Ragnor sort of stumbles out an answer and awkwardly steps into the apartment as Alec finally manages to gather himself enough to decide what to do about this situation.
Magnus gets home about twenty minutes later after a mildly concerning “Please come home right now…” text from Alec. He finds a still incredibly confused looking Ragnor sitting on the couch being served tea by Little One and having his hair molested by two of their cats. Alec at this point just looks bemused by the whole situation.