Goodreads Summary: There is a right way and a wrong way to summon her.
Jess had done the research. Success requires precision: a dark room, a mirror, a candle, salt, and four teenage girls. Each of them--Jess, Shauna, Kitty, and Anna--must link hands, follow the rules...and never let go.
A thrilling fear spins around the room the first time Jess calls her name: "Bloody Mary. Bloody Mary. BLOODY MARY." A ripple of terror follows when a shadowy silhouette emerges through the fog, a specter trapped behind the mirror.