If you like horror stories...

 Here are three titles I hope you'll find deliciously spine-chilling.

The Old Willis Place by Mary Downing Hahn
Tired of the rules that have bound them ever since "the bad thing happened," twelve-year-old Diana ignores her brother's warnings and befriends the daughter of the new caretaker, setting in motion events that lead to the release of the spirit of an evil, crazy woman who once ruled the old Willis place.

Undercurrents by Willo Davis Roberts
Fourteen-year-old Nikki has trouble accepting her new stepmother Crystal, and the problem grows worse when they visit the Northern California house where Crystal lived as a child and experienced some horrible event that she is trying to keep secret.

Wait Till Helen Comes: A Ghost Story by Mary Downing Hahn
Molly and Michael dislike their spooky new stepsister Heather but realize that they must try to save her when she seems ready to follow a ghost child to her doom.