To save all magic

After Harry killed the dark lord and what not, he lived a happy life as happy as one could get after a war, for 9 year the magical world was at peace, before they were told that they didn't have much time till we were found as peace doesn't last forever.on the 23/2/2030 they were found by muggle's, every last magical and any one who was in the smallest bit magical was hunted down and killed in every and any horrible way you think of, till only one remained that person was Harry Potter he hide way in a place no one not even the muggle's and other magical though to look. The planet was die-ing as magic is what keep the earth alive so there he lived till he breathed his last breath at 428 years old Harry know all one could about magic and non-magical why's and pretty much all there was to know plus some of his own research and protect's by the time he died and he breathed his last breath all the magic that was left in the planet lached onto his magical core making it stronger. Read to fined out what else's happens in the story.
I may have given away a bit to much information about watch happens as I can't write descriptions for the life of me anyway please enjoy the story and leave surgeons in the comments as the goes along. please note that I have taken a lot of my inspiration comes form Runes master by Work by ImNotAGuestAnymore so please read to understand some of the stuff in the story, I also have taken inspiration from there and other inspiration from many other Fanfiction.net and books I have read so some things munched in the story don't belong to me and originally be long to there makers. please note that don't own Harry Potter as that title goes to maker and writer of Harry Potter, our queen JK Rolling and that all oc's are mostly mine plus most of the plot.
This story may contain
Abusive past's, trocher, death, theft and may contain some 17+ stuff. Notes and worrying's will be written before the scene stars and were it end's so can skip it.