Amy McCaw 
Mina and The Slayers [EPUB ebook] 

NEW ORLEANS, 1995. MINA’S HAVING A KILLER HALLOWEEN.Mina’s settling into her new life, but the fun doesn’t last. Mina is on work experience with Detective Cafferty while the police are investigating a masked killer and a rise in suspicious ‘animal attacks’. During her own investigations, Mina discovers a mysterious group of slayers, who are battling to control the rogue vampires.The threats circle closer as Mina spends her days with the police and nights with the slayers. Will she and her friends survive Halloween without being staked, stabbed or bitten?