Locked in the science closet after hours by the cool girls who have rejected her, Riley escapes to discover that all the school doors are locked, the phones are dead, and the lights aren't working, and as she roams through the building seeking a way out, she starts to suspect that she isn't alone.

Staying with their aunts over the summer, Neil Cady, his sister Bree, and their new friends Wesley and Eric, set out to explore Greylock Hall, an abandoned psychiatric hospital which is supposed to be haunted by the ghost of Nurse Janet.

When Billy Broccoli moves into his new house, he discovers Hoover Porterhouse, a teenage ghost, is haunting his room, and he helps Billy get in style, stand up to bullies, and conquer his new school.

In the nineteenth century, ten-year-old Florence Crutchfield leaves a London orphanage to live with her great-uncle, great-aunt, and sickly cousin James, but she soon realizes the home has another resident, who means to do her and James harm.

Sara is preoccupied dealing with a brand-new ability that's just surfaced: the power to read minds.

"When unlikeable Elsie dies in the influenza pandemic of 1918, she comes back to haunt Annie to make sure she'll be Annie's best--and only--friend soon"--

School's almost out for the summer, and A.J. is dreaming about all the fun things he's going to do on vacation. But A.J.'s dream quickly turns into a nightmare when three familiar spirits appear to show him summers past, present, and yet to come. Will they be able to convince him to leave his bad ways behind? Or will this summer end up being a total bummer? Best selling author Dan Gutman brings his kid-friendly sense of humor to this special series...

Sara's best friend Lily thinks Kyle is the perfect guy, but Sara must help Kyle realize that he is actually a ghost.

A superstitious schoolmaster, in love with a wealthy farmer's daughter, has a terrifying encounter with a headless horseman.

"Twelve-year-old Milo is stuck spending the winter holidays in a house full of strange guests who are not what they seem-again! He will have to work with friends old and new to uncover clues in search of a mysterious map and a famous smuggler's lost haul"--