A Change of Fate

In which Regulus is alive. Sirius hates Dumbledore. Harry attends Durmstrang. Voldemort is sane. And Dumbledore is a manipulative senile old goat. Could one house elf really change everyone's fate? Harry/Fleur slash. Tri-wizard tournament. Durmstrang champion!Harry. Dark!but not Evil!Voldemort. Grey!Harry and Sirius. Evil!Manipulative!Dumbles. Sheep!Order