Peter Pettigrew
Hi! On the HP Lexicon, it says that Peter Pettigrew began passing info to Voldemort in 1979. I was wondering if anyone could tell me where in canon this is supported. It's not that I doubt the Lexicon, so much as I need to find where it indicates this, and what context it is in. If anyone happens to know and could give me some page numbers (American or British edition), that would be wonderful.