Book 1

Hally Watkins, her younger brother Jason, and other young people they meet in Newport, Rhode Island, must prove that their friend Tuyet is not responsible for burning down the house she has been hired to paint.

Book 4

Jason and the new friends he and his sister have made during their summer in Newport, Rhode Island, try to figure out the coded messages he has been getting from a mysterious stranger.

#3

The Kerry Hill Casecrackers, a group of kids spending the summer in Newport, help catch the thief of valuable antiques from Maitland Manor Historic Museum.

#2

The group of young people in Newport, Rhode Island, who call themselves the Casecrackers, try to discover the identity of a ghost seen on nearby Hazard Island.