A/N: This kinda sux, but what do I know? People might like it, so read it anyway. R&R!

Harry walked up to the House of Black, previous headquarters of the Order of the Phoenix, and knocked on the door. He was much happier now that he knew Sirius was still alive. The veil in the department of mysteries was merely like a vanishing cabinet, and Sirius had turned up in Borgin and Burkes a few months earlier. Harry knocked on the door. "Who's there?" asked a gruff voice.

"Lupin? It's Harry. You and Sirius wanted me?" He heard the clicking of many locks unlocking, and the door swung open.

"Yes… and your mates are here as well. As a celebration of you three coming of age, we're going to initiate you as marauders and teach you some tricks and things. And now that Sirius's name is cleared and he's alive, he's a registered animagus."

"Hermione…a marauder?"

"Oh, yes. Padfoot and I have straightened her out quite well in my opinion. Ah, speak of the devil, here's Padfoot now!"

Harry laughed as a shaggy black dog came bounding down the stairs and nearly knocked him over. "Hullo, Sirius. I hear you've been registered now."

"Yes. Ministry wasn't too happy, but Dumbledore smoothed it all over for me," he said, standing up. "Hey, Remus," he added as if just noticing him. Then, in a taunting tone, "Where's your wife?"

"Ah, shut up about her. She's your cousin."

"Yes, but you married her."

"Are you talking about Tonks?" Harry asked.

"Someone say m'name? Oh, Harry, it's you. Nice to see you…I daresay he's already told you," she said, jerking her thumb at Sirius.

"Yeah," Harry said, suppressing a laugh, while Sirius roared with bark-like laughter. "So where're the others?"

"Upstairs in the study," said Sirius calming down a bit. "You'd better go up there. They're dying to see you."

"Alright." Harry climbed the stairs to the study. In the hall, there was a big blank spot where a shrieking picture of Mrs. Black used to hang. "So they finally managed to get it down," Harry mused.

"Yes," said an unfamiliar voice behind him. "It took them ages." Harry wheeled around. A girl about his age with blond hair, blue eyes, and freckles stood there.

"Who're you?"

"Well, obviously, you're Harry Potter…Yeah, there's the scar; I see it. I'm Laura Lupin… adopted. I'm in your year. Hermione's in my dormitory, but we've never talked much… she's usually reading or some nonsense. But we're friends now," she assured him.

"Er… yeah, alright. Shall we go and join them then?"

"No, you go ahead. I'm going to find my mum and ask her if daddy and Sirius can make me a marauder too. See you." She waved and disapparated. Harry did the same and appeared with a loud CRACK in the study. Ron stood with his arms folded, next to Hermione, who was in a dusty old armchair--the only on in the room.

"Ah, mate. Took you long enough. Met Laura on the way?"

"Yeah…sort of a nutter if you ask me. So, you guys ready to become marauders? We'll have to add the R.O.R to the map and stuff… you know?"

"Yeah… I reckon it'll be fun. You know, I'm surprised Fred and George never asked to be marauders. They knew secret passages and tricks I doubt even Sirius or your dad knew about."

CRACK. There was Laura, next to Ron. "Mum says she wants you three downstairs."

"Laura…we don't have to call your mum Nymphadora or anything…we can go on calling her Tonks, right?" Ron asked

"Of course! She'd probably hex you if you tried to." Ron laughed, and soon they all were.

CRACK. CRACK. CRACK. Sirius, Remus, and Tonks were there too. The laughing stopped abruptly. "So…has the dream team grown to for?" asked Tonks. Ron, Harry, Hermione, and Laura looked at each other and burst out laughing again.

"Yeah…S'pose it has," said Harry, and the others agreed.

A/N: I know it's not much… but there you go, I thought that there should be a fourth person on the team, because there were four marauders originally, and what better way than to have Lupin and Tonks get married and adopt a daughter the same age as Harry, Ron, & Hermione…plus we needed another girl in there…right? R&R!