Challenge 46: Crossover

[cordeliadelayne]

Since these are always fun, this week's challenge is Crossover. You can crossover with whatever show/book/film etc. that you like as long as both Snape and Lupin are involved in some way.

I've also added several affiliates in the past couple of days, which you can find in the userinfo.

And as ever, suggestions for challenges are always gratefully received.