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 his family moves to a small town near Milwaukee, Matt's efforts to fit into his new fourth-grade class are complicated by his poor spelling and his encounter with the ghost of one of the school's former teachers.
Thirteen-year-old Kit goes to live with his grandfather in the decaying coal mining town of Stoneygate, England, and finds both the old man and the town haunted by ghosts of the past.
While visiting his friend Jeannie's eccentric Aunt Rosebud in a boarding house that may be haunted, ten-year-old Chad comes across a mystery involving a missing diamond bracelet.
Sixteen-year-old Marshall Seaver is expecting a boring summer when his best friend goes away, but instead he finds himself haunted--and hunted--by ghosts that want something from him which he cannot decipher.
Jim moves with his dad and sister to Minerva Hall where a ghostly voice urging him to "find the Seventh" draws him into a sort of macabre treasure hunt for clues to an ancient prophecy that threatens them all.
