Space, the final frontier. Dobby's brain was saved by the unspeakables. They did not tell Harry.
It is the year 2025. The first starship is ready. The U.S.E. (United Space Exploration) Terra, was to be on a three to five year mission. The man known as Commander Harry Black was to be in charge. They had over seventy people. The ship was over three times bigger than an aircraft carrier. The Hydroponics was broke up into the entire ship. A safety precaution. Each store room had a months supply in it and there were enough for five and a half years scattered throughout the ship. Every safety measure was done. The department of mysteries came up with an AI. They were told it was child like and would protect them in every way it could. They were not told it was an elf, or that there were ward stones protecting and being powered by the fusion reactor.
M.o.D. had put runes all over, making things unbreakable. He also set up expansion and duplicating runes and wards to make it possible to survive for over fifteen years. Harry had spent five years making this ship, indestructible. It had protective wards (shields) and artificial gravity. He had 'died' killing a new Dark Lord and followers (Ministry unspeakables), he also had a moleskin necklace with over fifty trunks shrunken on it, all under stasis. Two had over fifty thousand potions in them. Then there was animals, chickens, rabbits, sheep, cows, and other meat animals. One was full of salt water fish, crabs, and other edibles. Another had freshwater varieties. One had food seeds, another fruit trees, and a third wild rice's, bushes, and things like that. Five had metals and metalworking items. Another had his galleons and sickles. Five had magical animals for eating and for uses of finding things, like Nifflers. And two of guard types, loyal to him.
Lord Harry Peverell, Gryffindor, Potter, Black, Slytherin had planned this out. In case of accident and needing to live on some deserted planet. He also had a group of Nymphs and other trees to help protect the girls, if needed. The physiologist was confounded. So were many others. It was noticed by a few. They had a talk about if things went wrong, the ship being an ark. Frozen sperm, seeds, eggs, etc. were set to provide over a thousand different DNA sequences, so no inbreeding. There were sixty six females, age twenty two to thirty. The six other men were perfectly healthy, age thirty to thirty five. Then the seemly great scientist and commander Harry Jamison Black, age thirty eight. Genius and a magician of trouble shooting. Many of the females were attracted to him.
It was at the end, that Commander Black was let in on the secret of Magic. The AI was to be the brain of a magical species that serves mankind. "They're a diminutive magical species raised to be subservient to humans. They handle all of the menial tasks in exchange for extracting a portion of their Master's or Mistress' magic." Doctor Crusher told her commander. She consulted her notes, "This one is named Dobby."
Harry nervously eyed the pods that would hold a person in suspended animation in case their warp drive failed for one reason or another so Dobby could get the ship there without draining life support unnecessarily. "You sure they work this time? No side effects?" Everything was color-coded for easier identification; food went in the green crates, medical supplies went in the white crates with the red stripes, entertainment went in the yellow crates and so on.
Oi! Dobby checked out his master, the greatest wizard Harry Potter. He now knew technology. The other men were not needed. His master could make a viable population. Just as Harry had figured it out, Dobby with technology had learned that his master aged one day every ten years. With his power he should live five to seven hundred years. But his physical aging is stopped at twenty five. So he will be that way for several thousand years.