Who: Harry, Sirius, and Remus What: The getting Harry out of the mirror talks. When: The day after Draco was drugged. Where: Order Headquarters Why: Harry has almost figured it out.
For a variety of reasons, Harry had not told anyone in 2010 that he, James, and Sirius were going to drug Draco in the 80s. There was just so much going on for everyone. With his father's capture by the Death Eaters, and Martin's disappearance and return, and everyone's anxiety, and everyone's raw emotions and fear, (Not to mention the way they were going about it.), it seemed better to wait until he had something to tell them. And now he had something to tell them.
It felt like they were getting somewhere, that getting out of this mirror might actually be possible, but still, Harry was not looking forward to this conversation, for a host of reasons. The topic was difficult, what they needed to accomplish was likely impossible, he didn't like talking to Sirius and Remus together, like this, without his father because it felt too painfully familiar, and a few weeks ago Sirius had come over wanting to talk strategies for rescuing his dad and Harry thought they should include Remus. That had not sat well with Sirius, at all. Clearly something was going on there, but Harry had been too preoccupied, and a little afraid, to investigate that situation any further. He had hoped that they had sorted out whatever it was, but Sirius' only question was whether or not Remus would be there. So, obviously not.
Ginny brought Harry down and hung the mirror low on the wall in the lounge. All the furniture was now arranged around the spot on the wall where Harry could hang and be a part of the conversation. He had been pacing in his non-existent space for almost ten when Remus showed up slightly early.