Rob admits having seen a murder, but no one believes him--except the murderer.

When their mother disappears, two brothers go to stay with a great uncle in a mobile home park next to an abandoned amusement park and begin a search which puts them in danger.

Fourteen-year old Cici hopes for a romantic summer at the beach but instead finds herself trying to solve a murder which had occurred there the previous year.

During a frightening trip spent in airplanes and airports between Seattle and San Francisco, eleven-year-old Gracie and her two cousins Charlie and Eddie get involved with sinister characters, identical flight bags, and an assault on an innocent old lady.

What they thought would be a dream vacation turns into a nightmare for twelve-year-old Lewis and his twin sister Alison, when they accompany their irresponsible new neighbors on a trip to Yellowstone Park and are chased by two mysterious men.

After a bus journey in search of their father, thirteen-year-old Vickie and her younger sister discover that he is missing and may need their help.

To avoid foster home care while their mother is recuperating from illness, three children run off to the home of a grandmother they have never seen, where they find a cold reception and a terrible secret.