Where have her parents gone? Who is this spooky old man who's taken her to live with him, claiming to be her great-uncle? Why does he never eat, and why does he lock her in her room at night? What are her dreams of the Skeleton Man trying to tell her? There's one thing Molly does know. She needs to find some answers before it's too late.

    The launch of the Challenger is just weeks away, and Cash, Fitch, and Bird Nelson Thomas are three siblings in seventh grade together in Park, Delaware.Cash loves basketball, Dr. J, and a girl named Penny; he's also in danger of failing seventh grade for a second time. Fitch spends every afternoon playing Major Havoc at the arcade and wrestles with an explosive temper that he doesn't understand. And Bird, his twelve-year-old twin, dreams of being NASA's first female shuttle commander, but feels like she's disappearing.The Nelson Thomas siblings exist in their own orbits, circling a tense, crowded, and unpredictable household, dreaming of escape, dreaming of the future, dreaming of space. They have little in common except an enthusiastic science teacher named Ms. Salonga—a failed applicant to the Teacher in Space program—who encourages her students to live vicariously through the launch. Cash and Fitch take a passive interest, but Bird builds her dreams around it.When the fated day arrives, it changes everything.

    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. Once is not enough, though--at least not for Jess. Mary is called again. And again. But when their summoning circle is broken, Bloody Mary slips through the glass with a taste for revenge on her lips. As the girls struggle to escape Mary's wrath, loyalties are questioned, friendships are torn apart, and lives are forever altered.A haunting trail of clues leads Shauna on a desperate search to uncover the legacy of Mary Worth. What she finds will change everything, but will it be enough to stop Mary--and Jess--before it's too late?