From the New York Times bestselling author of Escape From Mr. Lemoncello's Library and coauthor of I Funny and Treasure Hunters, comes a series of spine-tingling mysteries to keep you up long after the lights go out...

Twelve-year-old Annabel thought Christmas break was going to be amazing. She’d planned to stay home in New York City with her best friend and do traditional things like go ice-skating in Rockefeller Center, hit the after-Christmas sale at Blo...

When twelve-year-old Casey's sole guardian--her stepmother Sylvia--doesn't come home one night, Casey believes she's run off with her boyfriend. The question is--will Sylvia come back? And even more urgent--how will Casey fend for herself in their ...