Find Mundungus Fletcher?” he croaked. “And bring him here…

““Find Mundungus Fletcher?” he croaked. “And bring him here, to Grimmauld Place,” said Harry. “Do you think you could do that for us?” As Kreacher nodded and got to his feet, Harry had a sudden inspiration. He pulled out Hagrid’s purse and took out the fake Horcrux, the substitute locket in which Regulus had placed the note to Voldemort. “Kreacher, I’d, er, like you to have this,” he said, pressing the locket into the elf’s hand. “This belonged to Regulus and I’m sure he’d want you to have it as a token of gratitude for what you--” “Overkill, mate,” said Ron as the elf took one look at the locket, let out a howl of shock and misery, and threw himself back onto the ground. It took them nearly half an hour to calm down Kreacher, who was so overcome to be presented with a Black family heirloom for his very own that he was too weak at the knees to stand properly. When finally he was able to totter a few steps they all accompanied him to his cupboard, watched him tuck up the locket safely in his dirty blankets, and assured him that they would make its protection their first priority while he was away. He then made two low bows to Harry and Ron, and even gave a funny little spasm in Hermione’s direction that might have been an attempt at a respectful salute, before Disapparating with the usual loud crack. ””

— J.K. Rowling