The reason he'd been asked here became crystal clear.
Remus had been worrying over that coin ever since he and Hestia had left Davies' flat. He'd not been able to find it, and since he was absolutely sure he hadn't spent it, he knew he'd lost it somehow. He'd hoped that it was in the Shrieking Shack - fallen into some crack in the floor boards, but obviously he wasn't that lucky.
Sighing, he slid the coin towards him, flipping it over so the initials showed. "No," he said, returning Robards' gaze. "He's not a Death Eater. He mistakenly came into possession of some very important Order information. Not only was it secret, but he could have found his life in jeopardy were other parties to find out about it."
As it was, he'd got himself into trouble that he hadn't needed. "We broke into his flat to retrieve it. He wasn't supposed to return home, but he did. What happened was the result of his actions to get us out of the house, and our need to retrieve our information. I assure you, he was not meant to be there. We had no plans of attacking him."