The Other Side: A Harry Potter FanFiction

Seventeen year old Lana Herondale has been sent to London in order to “recreate her attitude.” She’s a rebel, she brilliant, and she’s insanely gorgeous. While following a strange man down a random street at night, she finds herself in this weird place called “The Ministry of Magic.” Even weirder, she follows him to a place inside the ministry called “the Department of Mysteries” where he casts a spell that sends her entire world upside down.
Literally.
The universe is totally changed. For one thing, the entire world is controlled by a man called “The Dark Lord”, witches and wizards are evil and keep normal humans called “muggles” as slaves, and any muggle that refuses to cooperate is murdered. Seeking refuge from the wizards, a muggle couple sends her to 12 Grimmauld Place, where she is supposed to be under the protection of the Order of the Phoenix. There, all she finds is a very cynical Albus Dumbledore, a depressed Cedric Diggory, and an alcoholic Sirius Black.
Determined, Lana learns about the wizarding world; its history, its people, and even its weaknesses. She soon convinces the Order to try to save the world from Lord Voldemort, but how can she help save a world that she herself isn’t a part of?