A/N: Here's the final chapter! I hope you've enjoyed this little bit of fun. Please let me know what you thought of it. :)

Chapter Three

Scorpius and Albus sat together on the roof of the Astronomy Tower. They lent their backs against the stone parapet as they chatted.

"I wonder if our parents ever came up here…" Scorpius mused.

"They hated each other in school! There's no way they would have come up here together," Al said.

"I didn't mean together, obviously. Just whether they snuck out at night to come and have a look at the stars."

"Whether who snuck out?"

The boys looked towards the stairs and saw Rose emerging from the staircase.

"Our parents," Al said.

"Well I know mum did," Rose said, handing the boys each a bottle of butterbeer.

"Really?" Scorpius asked, while Al almost yelled "You're joking!"

"It's true," she insisted, "though technically she wasn't sneaking out, since she was a prefect and allowed to be out of bed after hours. I told her last summer that I'd started coming up here sometimes, and she told me that she came up here a few times as well. She actually met your dad up here once, Scorpius."

Scorpius choked on his butterbeer.

"Now you really have to be joking!" Al protested. "Auntie Hermione and Mr Malfoy meeting on the Astronomy Tower! That's the most ridiculous thing I've heard in a long time, and I had Trelawney today!"

"I didn't believe her either, but she insisted it was true. During their sixth year, while my dad was dating Lavender Brown."

"My dad works with her!" Scorpius said. "He says she's a complete nutter."

"Dad says so, too," Rose said laughing. "He says he can't understand what he ever saw in her, but mum reckons it's just because she was willing to snog him."

Al and Scorpius burst out laughing and Rose had to shush them, worried their peals of laughter would carry to other parts of the castle on what was an otherwise quiet night.

"Dad once told me that my grandfather used to come up here, too," Al said, when he had managed to quell his laughter.

Rose scoffed. "That wouldn't surprise me at all. He had a bit of a reputation for mischief, didn't he?"

Al nodded. "Dad said Sirius told him about some of the things they used to get up to up here, but he wouldn't give me the details. Probably thought it would corrupt me or something. I'm not the one he should be worrying about though, am I? Though James swears the only reason he's always getting in trouble is so he can live up to his namesakes' reputations."

"It doesn't help that Uncle George slips him free products from the shop every time they see each other," Rose added. "You know his last prank was completely Uncle George's idea?"

"I thought it was more sophisticated than James' usual work," Scorpius chuckled. "Your uncle really is a master."

Rose and Al mumbled their agreement. Though Scorpius had only met George a few times thus far, they had been on the receiving end of one too many of their uncle's jokes to really appreciate them anymore.

The three young friends fell into a few minutes of companionable silence. Al was the one to break it.

"I wonder if Auntie Hermione and Mr Malfoy ever… you know."

"EW!" Rose and Scorpius said in unison.

"Hey, it's a perfectly legitimate question. Uncle Ron was busy snogging Lavender, Dad was probably off with mum, and they were up here alone… in the dark… under the stars…"

"Stop it, Al! That's my mum you're talking about. You're putting all kinds of horrifying images in my head!" Rose shut her eyes tight and shook her head.

Al laughed. "Sorry."

Scorpius started naming constellations.

"What are you doing?" asked Rose.

"Trying to fill my head with stars, instead of images of my dad snogging your mum. It would probably work better if I could actually see the stars though. Remind me why we came up here tonight, when it's so cloudy? I thought the point of these meetings was to stargaze."

"Well, the original point of these meetings was to stop all three of us failing Astronomy," Rose said, "but when we realised looking at the stars wasn't enough, we decided to just use it as an excuse to hang out, away from the rest of the school. And anyway, you two like coming up here because it was where you first – "

"I know that," Scorpius whined, and glared at Al like it was his fault Rose knew. "I was here, remember? Why did we come up here today, when it's so cold and cloudy?"

"It's not my fault that you didn't bring your cloak," Rose snapped, but she pulled a small jar out of her pocket and passed it to Scorpius.

Scorpius took it gratefully. He opened it and placed the jar in front of him, holding his hands over the blue flames inside.

"Thanks, Rose. What would we do without you?"

The two smiled at each other and Al made vomiting noises.

"Oh, get a room!"

Scorpius laughed and said, "Don't be jealous, Albus. You can't hog all of my time."

Rose leaned over Scorpius to smack her cousin over the head. As she sat back down, a movement in the grounds caught her eye.

"Looks like we're not the only ones out after hours." She pointed towards the figure she had seen down near the greenhouses.

"It's probably just Professor Sprout," Scorpius said.

Albus got up to get a better look. "No, that's James."

"How can you be sure?" Scorpius asked. "He's so far away."

"You wouldn't believe the number of times James has snuck out at night at home," Albus explained.

"Or while we're all staying at the Burrow," Rose added. "I'd know that silhouette anywhere. I've seen him sneaking around the garden there more times than I care to remember."

"What's he up to, then?"

"He's probably just stealing something for another prank. Tread carefully for the rest of the week, will you? Who knows what he's planning this time."

"Wait, is that someone with him?" Rose said, peering towards James.

"Merlin's pants, it is!" Albus screamed. "Do you think we've finally found his secret girlfriend?"

"Oh, do you think?" Rose said excitedly. "Should we go down to the Entrance Hall to catch them on their way back in?"

Albus nodded enthusiastically. "He's always giving us a hard time, it'll be fun to finally have something on him for a change!"

Al and Rose jumped up, but Scorpius stayed where he was.

"You're not coming?" Al asked, a bit disappointed.

"Nah, I'd like to stay up here a bit longer. It's nice to have some quiet time, away from the dungeons, you know?"

Albus nodded. "I'll see you later, then." He bent down to give Scorpius a quick kiss before following Rose down the stairs to catch his older brother.