Petunia married a biochemist, and Harry grew up reading science and science fiction. Then came the Hogwarts letter, and a world of intriguing new possibilities to exploit. And new friends, like Hermione Granger, and Professor McGonagall, and Professor Quirrell... COMPLETE.

AU. Harry Potter disappeared! While the Wizarding world sink into war, Harry is thrown in a whole new world and left to fend for himself. He will have to prove himself worthy of bonding to the long thought dead Magical Dragons and becoming a Dragonmaster.

Nuclear war breaks out and Voldemort casts a spell to stop time. He and Harry alone are left to defuse the missiles and prevent the war. Voldemort’s radiophobic. Oh joy. LVHP. Spoilers for HBP, none for DH.

Harry Potter finds himself in the middle of a peaceful park after somehow escaping his uncle's abusive household. However, he does not remember his identity or his past. Now Harry must begin a new life under a new name as an elemental mage. AU 5th Summer

AU - Post GoF, incorporating OotP. After Harry gets a strange birthday gift, he and his friends end up on an epic journey across the ages as they try to get back home. First in the series, rewritten up to part 18.