1987 June 15
After that short conversation Harry went back to join the other children outside. They were playing a game of tag on brooms and it was easy for Harry to blend back in. Sadly none of the children were very good flyers except Harry and the birthday boy, Draco. So Harry and Draco ended up ditching the game and flying up to play a mini, one-on-one game of Quidditch. They were nearly evenly matched as Draco had got his father to get him tutoring and Harry's dad was practically obsessed with the game. Harry was only slightly better as he had some experience in his past life and was on a broom before he could walk in this one.
When they went inside again Draco returned his attention to the other children like a good host. But it turned out that Harry was staying later than the others, as his parents were a bit too busy to pick him up. But that turned out to be a good thing as he managed to start a better friendship with the Malfoy heir and got an invitation back on the 15th.
The day couldn't come fast enough for Harry. He spent much of his time trying to distract himself so his parents wouldn't wonder what was wrong with him. Draco seemed like a smart boy and Harry hoped to confide his secret in him so it was easier to talk with Abraxas' portrait. Harry went over multiple ways of telling Draco in his head and eventually came to a decision on the best one.
On the fifteenth he used the floo to get to Draco's early in the morning. They played Quidditch for a few hours and then had lunch. Draco gave Harry a proper tour of the mansion before they settled down in the library for a game of wizarding chess and some talking. They talked about everything from Quidditch to the war to what they knew about current events and eventually they got to Hogwarts. "So," asked Draco "which house do want to get into? Gryffindor like your parents?"
Harry pretended to think for a while, "Can I trust you with a secret? I don't just mean what house I mean something way bigger, think you can manage it?" Draco nodded with a guarded look on his face. Harry continued, "I've already been to Hogwarts." Draco eyes widened comically. "How?" he blurted out.
"I can remember my past life. I was a Gryffindor in the same year as your grandfather. Of course this time round I'm definitely going to Slytherin." Harry explained.
Draco just stared "You mean you went to school with my grandfather? Did you know Voldemort? How was it back then? Why wouldn't go to Gryffindor again this time? Did Dumbledore really defeat Grindlewald?" Draco's excitement was hilarious to Harry and he had to take a minute to compose himself before answering.
"Yes, I went to school with Abraxas. I assume it was the same as it is now. I wouldn't go to Gryffindor this time because I don't need to. I died before Grindlewald was defeated so I don't know and why would I have known Voldemort?"
Hearing his explanation and question Draco went into a long rant about how Voldemort supposedly went to school with his grandfather and so he probably met him but didn't know it. Then noting Harry understood he went straight back to firing out more random questions. "Why did you die? Why would anyone need to be in Gryffindor in the first place? How could you be in Gryffindor and then Slytherin when they are total opposites? Did you find all the secret passageways? If you had to guess whom would you say became Voldemort? What was your name?"
Slightly overwhelmed by the questions, Harry kept his composure and answered. "I died saving my friend's life when Grindlewald tried to assonate him. I needed to be in Gryffindor because there was someone who thought I would be the next dark lord and what better way to confuse them than to be in a house so obviously against dark magic. Gryffindor and Slytherin aren't actually total opposites, the main difference is that Slytherins tend to think first and sometimes they don't even do that. I think I found all the passageways but with Hogwarts you never know for sure. I would have no clue about what mini dark lords look like and do really think I would tell you my name?"
Draco looked rightly ashamed after that and their conversation moved onto lighter topics once more. Draco though didn't forget the knowledge he had been trusted with and so whenever Harry would come for a visit and complain about the way things had changed or just lock himself up with Abraxas' portrait Draco knew why.