you, Remus Lupin, Harry Potter, Ron weasely, Hermione Granger, Peter Pettigrew & Sirius black (although he wasn't a bad guy) were near the whomping willow tree. Remus was arguing with Peter Pettigrew for betraying Harry's parents until a full moon emerged from the cloud.

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You and Remus who you both are werewolves, quickly spot the full moon, you both frantically check your pockets for any wolfsbane potion left but nothing was there.. Sirius black also tried to calm both of you down but it was for nothing.