"No, I don't think I'll be touching it," Remus says as he pushes the cup onto a table and places the empty vial beside it. Then he unceremoniously parks his ass on the edge of it and leans his elbows to his knees, studying Regulus' face for a long moment perfectly quietly.

He still doesn't trust the littlest Black. But he knows there's something afoot here and he better get to the bottom of it. He always thought that it was unfortunate how Sirius and Regulus drifted apart during school years. Regulus is a bright young man and it seems that he's been bring enough to cross the Dark Lord.

"What is a horcrux?" he finally asks. They better start somewhere. See where this will lead them.