Disclaimer: Don't own anything.
HP x Darren Shan saga/ Cirque du Freak
Fem! Harry.
Billie Zaronda Potter offers Crepsley and Darren (+ Harkat (I can't believe I nearly forgot him!)) a place to stay while they are running from the vampaneze. When they start to leave, Billie asks if she could come with them.
First they, mostly Crepsley, are reluctant to let her come but Billie tells them she can keep up with their pace. When questioned how, she states that she'd run with vampires once and that it's quite easy for her.
Billie is an animagus, you can choose what her form is, as long as it's as fast as a vampire when they run at full speed like a wolf.
You decide the pairing, but not Billie x Darren please, 'cos Darren is, well, not young exactly, but looks too young... (preferably Billie x Crepsley).
If you wish to, you can change Fem!Harry's name. And as always, PM me if you want to take the challenge.