"The decaying mansion is known as the old Willis place, even though no one named Willis has lived there for years.  Diana and her little brother, Georgie, know every inch of its extensive grounds.  They climb trees and swim in the pond.  And they can do whatever they want, even stay up all night.  They don't have to change their clothes, brush their hair, or go to school.  They have total freedom--as long as they don't leave the old Willis place. ...

"Quirky, tool-wielding Alice Cannoli-Potchnik begins to repair the dilapidated mansion next door--only to discover the old house is home to ghosts, and they need mending, too"--

Travis and his sister Corey decide to boost business at their grandmother's Vermont inn by staging a few "hauntings" that soon draw tourists from across the country, but when their antics awaken a dark force, they must find a way to put to rest the ghosts they have disturbed.

"Ginny is unhappy when her family moves from Chicago to upstate Michigan for the summer; her father has a job restoring a 1930s mansion, but there are rumors about Woodmoor and the forest next to it: rumors about strange mutant creatures; Ginny, an aspiring mystery writer, is soon half convinced that the rumors are true, because something or someone is haunting the house--and she plans to investigate, with the help of Will, the older boy who lives...

Sixteen-year-old Cordelia and her family move into the house they just inherited in Pennsylvania, a former insane asylum the locals call Hysteria Hall--unfortunately the house does not want defiant girls like Delia, so it kills her, and as she wanders the house, meeting the other ghosts and learning the dark secrets of the Hall, she realizes that she has to find a way to save her sister, parents, and perhaps herself.

1919. Mama is ill. Father has taken a job abroad. Nanny Jane is too busy to pay any attention to Henrietta and the things she sees - or thinks she sees - in the shadows of their new home, Hope House. All alone, with only stories for company, Henry discovers that Hope House is full of strange secrets: a forgotten attic, ghostly figures, mysterious firelight that flickers in the trees beyond the garden. One night she ventures into the darkness of Nightingale...

"Harper is dealing with too many new changes in her house. Her cousin, Leo, is now living with them; her sister, Kelly, has started working at a local makeup store, Jeune; and Harper's spirit hunter abilities have grown increasingly more powerful and uncontrollable, making her a target for possession. But when Harper and Dayo uncover a dangerous plot to steal youth from millions of innocent people, Harper must use all her powers to destroy an ancient...