All together now
"Hi," Harry said weakly. He hadn't seen Dobby since he died and he had missed him so much.
"Who is you and why is you being in Master's house?" Dobby interrogated in a determined voice.
"My name is Hadrian Ebonymarauderé. Of course, that's not my real name. No, my real name is Harry James Potter-Weasley. I have travelled back in time 8 years into the past. I am here to set things right. I want to protect my friends and the people that I love that weren't protected when they should have been."
"Time-travel! It is being a thing most unheard of. And Master Harry Potter-Weasley, sir, what an honour it is. How can it be Master Harry Potter when Master Harry Potter is a youngling and dead?"
"Dead?"
"Master Harry Potter, Master James Potter and Mistress Lily Potter were said to have defeated him. They died as well, though. He left nothing behind of Master Harry Potter. Nothing."
"No, Harry didn't die. I have him. I wanted to protect him from the life he would have if he went to live with his muggle relatives."
"Dobby believes you, sir. Dobby can feel it with his magic. Why is Master Harry Potter-Weasley here?"
"I'm here for two reasons. The first I can't tell you just yet. The second is for you. You see, Dobby, in my second year at Hogwarts, you made it your job to protect me. Your master was trying to kill me. It ended up with us becoming friends and I helped you get free. You died in my arms, years later, saving and protecting me and my friends. It's my turn to protect you now. I'm just starting earlier this time."
"Free Dobby?" Dobby's voice became teary as he cried. All of a sudden, he quailed," oh no. Dobby should not be thinking to escape. Dobby is a bad elf. Dobby must iron his hands to punish himself. Dobby is such a bad elf." Dobby continued crying.
Harry hated seeing his friend like that and started to pull him into a hug. Dobby drew back with a flinch before he stopped himself." Sorry Master Harry Potter. Dobby is not meaning to be bad. Dobby is grateful for...this?"
Harry smiled sympathetically at his old friend, "this is called a hug, Dobby. I plan to give you a lot more of these. Also, you can just call me Hadrian. Even if it's not my birth name, it's my real name and I want my friends to call me by my first name."
"I'm just worried is all, Moony," Sirius sighed as he rocked the recently-dubbed Frankie against his chest.
Moony, who was bouncing 'Koru' up and down soothingly, replied, "I don't blame you Padfoot. It might be Prongs' kid but he doesn't act like either of his parent's and I know-." Moony cut himself of to quiet the cries coming from Koru before continuing," I know he wasn't raised by them but...this? This is so weird it hurts."
"I know what you mean but if we take what he says to be the truth then he really is protecting them all, in his own way at least. I mean, if you or Prongs time-travelled back to when I was a kid and decided to kidnap me, I know I wouldn't mind."
Remus rolled his eyes, "I have no doubt about that. You'd probably thank us."
Padfoot puffed up in pride before sobering, "how bad do you think the kids' lives were for him to kidnap them. He kidnapped the tadpole from Augusta Longbottom's care. I know we weren't that close with Frank but his mother seemed nice, if not strict."
"Maybe she's not like that anymore. I mean, she did loose a son recently and a daughter-in-law. Frankie would be the most that she has left of them," Remus reasoned.
"I guess...do you think it was how he was treated as a kid that made him do this?" Sirius pondered. It was something that he'd been considering for a while.
"Do I think his erratic behaviour of kidnapping children is due to abuse and a lack of love in childhood? Yes. Yes I do. However, you have to remember that this kid was just a bit younger than us when the war was at it's worse. People he loved got hurt and he just wants to protect them. If it ever happens to me, I'll do it for you. You and Regulus wouldn't have to live like that," Moony smiled grimly as they took the now-sleeping babies back to their rooms.
It wasn't until they were snuggled against each other in the darkness of Remus' room that Sirius spoke up again, "I'll do it for you too, y' know. Always."
By the end of the night, Dobby and Draco were settled in their rooms, safe, sound and most importantly, free. All was as it should be and Hadrian could not be happier.