Harry, Hermione, and Ron had just finished searching Regulus' room, but hadn't been able to find the real locket. It looked like someone had been there before them though searching. They didn't know who or what, but they went down to the kitchen to talk about it. The house was still well stocked with food, even though Erin and Sirius had moved in with Andromeda at the end of the last school year. Harry paused hearing something on the stairs and opened it grabbing Kreacher. "What are you doing here? You're supposed to be at Andromeda's aren't you?"
"Kreacher is looking over the house while his mistress and masters are away." He said slowly.
"Kreacher," Harry said. "You know what this is?" He held out the locket.
Kreacher didn't like seeing it, but Harry knew the elf had gotten passed a lake of inferii, he wasn't as feeble as all that. "That's Master Regulus' locket."
"But there were two of them, weren't there? Where's the other one?"
"Mundungus Fletcher came in the night after my mistress and masters left. He stole many things."
Harry swore under his breath. Mundungus was to have been with them when they left Privet Drive, Dean had come at the last minute when Mundungus turned coward. "Are you sure he took it?"
"No…" Kreacher said thinking about it. "Master Regulus may have the locket."
"What, with him, in his grave?" Ron asked looking disgusted. "Harry, I am not digging up graves, you can forget it."
"Master Regulus is not dead." Kreacher said giving Ron a withering look.
"What do you mean?" Harry asked him. "He died in the last war with Voldemort."
"No, Master Regulus was saved from death and transformed into a cat. He would get his body back when he saved a child from the dark. His child."
"Mira," Harry said. "Are you saying that white cat he has is REALLY Regulus Black?"
"He is no longer a cat."
"Will he come and talk to us?"
"I will see." Kreacher said disappearing from the room.
It was an hour later when Kreacher returned with the dark haired young man. He looked like he was only a few years older than they were. He didn't look happy to be there though. "I never wanted to set foot back in these walls," he told Harry ignoring the other two. "This better be important."
Harry held up the fake locket. "You tell me."
"You are going after the Horcruxes then, you've figured it out." He snorted. "Good for you."
"Where's the real one, Regulus?" Harry asked him.
"It was here, last I knew. Kreacher? Where's the locket?"
"Mundungus took many things when Master Sirius and Mistress Erin left the home."
"Find him," Regulus told him. Kreacher grinned slyly and disappeared.