ESE!Lupin condensed

[houyhnhnm102]

No: HPFGUIDX 146894

pippin:

> I know the threads are getting a bit tangled, so I'll 
> try to summarize a bit. The ESE!Lupin theory states that 
> Lupin will be revealed as a villain in Book Seven. What 
> one might call the grand unified version of the theory 
> is as follows:

houyhnhnm:

I haven't gotten into the ESE!Lupin theory too much.  It's clever and I 
enjoy all clever speculation, but I haven't been converted.

Except that something about Lupin has been bothering me and I don't 
think anyone else has brought it up.

When Lupin was on the train with the Trio at the beginning of PoA, 
Hermione knew who he was because she saw *Professor* R. J. Lupin "in 
peeling gold letters" on his suitcase.  Where and when was Lupin a 
professor?  Not Hogwarts as far as we know.  Durmstrang?