Thirteen-year-old Sherry helps her mother, a ghost, to investigate who is stalking Sherry's stepmother, but Sherry is also very busy with school and friends, while her mother is also striving for a gold medal in the Ghostlympics.
With playoffs ahead and a chance to play a few games in the National Hockey League, Josh hesitates to get involved when he finds more than a dozen dead cattle on his dad's ranch.
Susan, eleven years old in 1914, encounters a mystery through an independent-minded female boarder and becomes involved in the growing suffrage movement in New York City.
Having moved from Anaheim to Hollywood, California, so her sister can star in a television sitcom, shy and lonely Jessica tries to discover who is selling unflattering stories about her sibling to the tabloids.
When her boyfriend becomes the fourth student at her high school to die over the course of a year, and Darina starts seeing the dead teenagers, she discovers that they have come back to deal with unresolved problems, and she begins helping them so they can go to their final rest.
Lisa, working as an assistant manager at a record store in Green Oaks mall in 2004, teams up with security guard Kurt to investigate sightings of a little girl clutching a toy monkey that have begun to appear on security tapes and which Lisa believes must have some link to the disappearance of ten-year-old Kate Meaney twenty years earlier--a crime that ruined her brother's life when he became a suspect.
Erin's friend, Marcel, is in a coma as a result of a savage beating and Erin decides to track down the person or persons who did it, but she has no clues to get her started.
