In 1935, when her mother gets a job housekeeping for a woman who does not like children, eleven-year-old Turtle is sent to stay with relatives she has never met in far away Key West, Florida.
The Pain and the Great One are on the move as they go to the mall and get separated, ride the super slide at the county fair, and boogie board at the beach.
Daniel Funk, who lives with three sisters, his mother, grandmother, and great-grandmother, has always wanted a brother, and when he suddenly shrinks to the size of a toe, he discovers that he has a twin brother who is the same size.
Henry, Jessie, Violet, and Benny become trapped in a cabin by an unexpected snowstorm, which turns into an even greater adventure when they help their neighbors, a baker and his family, recover an old family secret.
The Alden children investigate various mix-ups at a zoo run by their grandfather's friend in an effort to save it not only from pranksters but also from the town council.
When their grandfather arranges for them to spend two week at Sunny Oaks, the four Alden children enjoy settling into the routines of farm life but become suspicious about a mysterious horse locked in the stables.
While visiting the seaport town of Ragged Cove, Massachusetts, the Alden children find the ship's log of the Flying Cloud, shipwrecked in 1869, supposedly during a mutiny.