I'm convinced now that Harry will have to find and corner Mundungus Fletcher, I have a feeling that he stole the Slytherin locket(along with most of the Black family's possessions, which are now legally Harry's) from 12 Grimmauld Place.
I'm convinced now that Harry will have to find and corner Mundungus Fletcher, I have a feeling that he stole the Slytherin locket(along with most of the Black family's possessions, which are now legally Harry's) from 12 Grimmauld Place.