Vampire Close — Susanne Saville

Fiona MacPhee is a woman with a mission--and a very dark secret. Sidekick to Joan Armstrong, a famous demon hunter, Fiona must scour Edinburgh for the answer to a cryptic prophecy before an ancient evil rends the veil between the worlds at Samhain. She can't afford any distractions. Especially not from Rory MacLaren. A handsome, charming rogue, Rory has also been a vampire for 260 years. When Rory catches Fiona in a deserted wynd after midnight, his offer of help could not be better--or more suspiciously--timed.