Anne, an eleven-year-old orphan, is sent by mistake to live with a lonely, middle-aged brother and sister on a Prince Edward Island farm and proceeds to make an indelible impression on everyone around her.

Living with his grandfather on an island off British Columbia, ten-year-old Daniel feels deep loneliness until the night he meets a mermaid whose identity he tries to learn.

When a mermaid attempts to lure her into the sea, fourteen-year-old Adrianne, who lives in a superstitious island community, must choose between the promise of an underwater paradise and those she loves.

Twelve-year-old Eddie Atwell accidentally learns who has been stealing lobsters from Fog Island lobstermen and enlists thirteen-year-old Briggs Fairfield, a summer visitor, to help foil their plans.

When fifth-grader Bailey, who lives on an island off the coast of Maine, suffers a series of setbacks, including a lice outbreak at school, it will take every ounce of her determination and the help of new school friends to get everything back together.

Having finally developed the psychic ability her father has used to provide for them, twelve-year-old Spirit Holden, aided by the ghost of her beloved dog Sky, investigates the mystery of why wild dogs are dying on their remote island.

Twelve-year-old Captain Scarlet McCray rescues Jem Fitzgerald and offers to help find his Uncle Finn's treasure in hopes of entertaining her crew, the infamous Lost Souls, and possibly persuading Jem to join them.

Tom goes with his Uncle Harvey to Peru, where they narrowly escape imprisonment and death as they hunt for buried treasure after tracking down a journal written by John Drake, a young relative of Sir Francis Drake, on a voyage to Lima in 1577. Includes biographical information on John and Francis Drake.

When the Bob-Whites--minus Dan--head to Cobbett's Island to spend ten days in a historic home on the beach, Trixie finds an old letter tucked away in a book and sets off on a long-delayed treasure hunt.

Thirteen-year-old Eggbert, a planter's son on a pirate-infested Caribbean island chain, is on the run from a wealthy and powerful villain trying to kill him for his connection to a hidden treasure.