Thanks for offering to help out guys
I'm REALLY bad with

synopsis

, so I'm just going to explain the storyline my way.
My MFC has been 'haunted' by evil mythical creatures since she was a child, so when she hits her teens, she has this 'bad streak' in her, which gives her a negative rep at school for being difficult and rebellious and dangerous (to an extent).
So one day, she gets tricked/lured into this 'other' world by the creatures of the dark. Which is basically anything mythical such as witches (well... they're not so mythical since I'm basing them off the zulu's back home - scary stuff, seriously), ghouls, shapeshifters/werewolves, the Naga, demons, the inevitable vampires (inspired by
John Ajvide Lindqvist's vampire, so not for the faint-hearted), a few zombies, etc etc etc. There's big hoo-haa when it becomes common knowledge that a human is in their midst, but she ends up surviving/running/hiding, whatever to save her skin, by creating alliances with certain members of their society (and then of course her guardian also has a role to play in keeping her alive).
Eventually she manages to find her way back to her world, but on her return she realises that in the couple of years that she'd been gone, her family had packed up and relocated to another area. She tracks down her family but she's still tormented by these creatures manifesting in every way they can, whenever and wherever they can. Because obviously she now knows a bit too much about their world, oh, and she locked them out of her world with a key, so they're out for her blood (or out to drive her crazy and ruin the rest of her life until they CAN kill her).
That's the general subplot throughout the book. The main plot revolves around my MFC becoming suspicious of the mysterious and weird groupie her sister hangs out with, until she finally gets her head out of the gutter and tries to get her life back on track by doing normal things, like making friends and going to school and such. Oh, and sleeping at night.
But when she meets the groupie her sister is involved with and realises that her sister is obsessing over this vampire guy, the main conflict of the book revolves around my MFC's hatred for their kind, and my MMC's (the vampire) very weird attraction/admiration for her, and of course the little sister's conflict/competition with my MFC. Sorta like a love triangle of sorts.
So eventually little sister is manipulated by these creatures to steal the key from MFC and so she's abducted by these creatures. This is the turning point in the novel where MFC and MMC end up having to work together to get little sister back, and keep themselves from being turned into demon-sushi, and afterward when things pan out, MFC becomes fond of MMC.
That's the general idea. The novel ends where MMC heroically sacrifices himself to save MFC, but it doesn't really work and MFC ends up dying anyway. There is a light at the end of the tunnel, but I'm not giving that little detail away.
That's it. The working title is
Shadow Legacy, but it doesn't seem to fit due to the plot changes I've made.