Four letters went to the owl-post office the next morning.
Harry found Profess…. Remus Lupin sitting at the kitchen table looking tired.
"Did we really just appoint me Defence Professor?" he asked.
"We did" said Harry "I hope it works."
Remus shook his head "Not the right attitude. It works because you own a quarter of the school."
"And first night back from Yule holidays will be a real treat" said Harry.
"Now tell me, Harry, what's happened this year?" asked Remus.
Harry explained about Umbridge, the Slinkhard book.
"And Miss Greengrass?" asked Remus, sniffing.
Harry explained more awkwardly, leaving out all mention of time-travellers.
"And explain again, but try lying less?" asked Remus.
"Promise not to tell?" asked Harry.
Remus nodded. Harry spilled all. Remus had sit down to take several cups of tea quite hurriedly, the teacup rattling on the saucer.
"So… you already know you two married, because your daughter, son and older self dropped by." said Remus "That sounds incredibly unsafe. Time travel is forbidden for quite practical reasons. Wanting the universe to keep existing, for example."
Sirius came downstairs and sat, and Remus poured him tea.
"Harry's been a very busy boy. Both now and in the future" said Remus. Sirius nodded. "Still, Roxanne Bathory's daughter."
"Roxanne Bathory!" said Remus "Harry, are you after … Daphne Greengrass just for her looks?"
"Older me said Bathory women are the greatest, and that Daphne was the one." said Harry.
"Well, he's clearly a biased source" said Remus lightly.
"Roxanne's aged well" said Sirius "for a mother of a fifteen-year-old, she passes for twenty-something in dim light."
"God. Cyrus must be fucking insufferable." said Remus.
"Bloody grin on his face half the time." said Sirius. "Had his arm around her waist on the sofa."
Harry looked at Sirius and Remus… thirty or forty years old and single. "Mrs Greengrass is a pureblood bigot" said Harry. "And till … Cassiopeia Black told Daphne I wasn't a half-blood, she had no time for me either."
"Cassiopeia?" asked Sirius.
"Caph for short. Because she was born second. Altair's the older twin." said Harry.
"And what do they look like?" asked Sirius "In case we meet them?"
"Um" said Harry "Altair's my height, wider build, different nose, green eyes, Potter hair."
"Different nose?"
"Long nose." admitted Harry "Gets it from his mother."
"And Cassiopeia?" asked Sirius.
"Straight or slightly wavy light brown hair, but she charms it blonde, though Daphne bleaches hers. Green eyes, glasses. Oh, Altair wears glasses too."
"Prong's cursed eyesight strikes again. Even to the grandkids" said Remus. "What does this Cassiopeia Black look like?"
"Same as Daphne basically." said Harry "Different cheekbones."
"Yours?" asked Remus pointedly.
"Well, yeah" admitted Harry "But her glasses suit her, and they all had reasonably expensive clothes on. And future me wore dark grey dragon-hide boots and had, I'm told fairly muggle clothes on under his acromantula silk robes."
"And future you said she was grounded for How long?" asked Sirius.
"Thirty years?" said Harry "Maybe till she's thirty."
"Anything else?" asked Sirius.
"Oh, I'm never going to Spain. Apparently we went to the beach, stepped on an old mine and I lost my legs, which were grown back, but I went to Nurmengard for a while, till I got let out and paid compensation."
"Bloody hell" said Sirius "You just had to top my record, with Azkaban."
"I don't think I was in that long" said Harry "The children didn't seem to think it had been long."
"You're banned from ever going to a beach" said Sirius simply.
"Oy, it was a sea mine" said Harry. "I've not been to the beach ever."
"We'll go to a perfectly safe French beach on the Riviera. One of the topless ones." said Sirius, with a smile.
"Topless?" asked Harry.
"Women don't wear the tops of their bikinis. Boobs as far as the eye can see" said Sirius cheerfully. "I should go to Tahiti" he mused.
"Tahiti?" asked Harry.
"It's summer there now" explained Sirius. "There's topless beaches there too."
Harry gaped.
"Harry, close your mouth" said Remus tiredly.
"But perving" said Harry.
"People don't perve, or they get thrown off the beach" said Remus.
"So one perves discreetly" said Sirius.
Harry shook his head.
-==0==-
A much older and wiser Harry Potter rode the Hogwarts express back to school.
After eating Ron's corned beef sandwich, and watching Ron demolish a filled roll from the cafe at the tube, Harry stood up.
"Harry, are you going to see Greengrass?" asked Hermione, nose-first jammed into a book. Harry peered at the title. It wasn't in proper letters – all runes.
"Um. Yes" said Harry. And kiss her, he thought to himself.
"Should buy her chocolate" said Ron idly, "From the trolley. Get me a bag of gummy slugs while you're at it?"
"Ron!" exclaimed Hermione.
Harry grinned and left the compartment. Everything was going to be all right.
Unfortunately for Harry, his time and dimension travelling daughter hadn't taken measures to control Draco Malfoy.
Ten years later….
Harry glared at Draco Malfoy across the Christmas table. Again. "Malfoy." he said sourly.
"Potter" said Draco.
"Darling, do play nice." said Astoria Malfoy, tall, brown haired and in Harry's opinion, a bit soft in the head.
Daphne poked him viciously in the ribs.
"Ow!" Harry exclaimed.
"No fighting at the table." said Daphne "You'll upset the baby."