I think this has been said before but y’all know Remus was a chaotic bi mess. chances are, the Mauraders found out about him because he outed himself by making a werewolf pun.
Why did you put that in my head, i can’t stop it now-
closested Remus lupin on halloween: gUys gUYs gEt iT-
Sirius: you’re a- you’re a sheep???
Remus: *wHeEze*
AAAAAAAAAAAHHH