Taking care of a baby left with them at the end of the tourist season helps a family come to terms with the death of their own infant son.

Twelve-year-old orphan Roo Fanshaw is sent to live with an uncle she never knew in a largely uninhabited mansion on Cough Rock Island and discovers a wild river boy, an invalid cousin, and the mysteries of a hidden garden.

While spending the summer at Grandmary's summer home on Goose Lake, Samantha and her twin cousins decide to visit the island where Samantha's parents were drowned during a storm.

In the late nineteenth century, when Conor Broekhart discovers a conspiracy to overthrow the king, he is branded a traitor, imprisoned, and forced to mine for diamonds under brutal conditions while he plans a daring escape from Little Saltee prison by way of a flying machine that he must design, build, and, hardest of all, trust to carry him to safety.

Three children spend the summer with their mother on a secluded island where they discover a three-headed dragon living in a cave and learn what it means to be a Dragon Friend.

"Magical twins Fifer and Thisbe Stowe have spent their entire lives wishing for an adventure. When a dragon shows up claiming that his family is being kept as slaves in their homeland, the twins sneak off to the land of the dragons to help them"--

"Piper's older brother leaves Peek-A-Book Island and Piper refuses to take off his old earmuffs, no matter what! Things are going from bad to worse... until she discovers The Fairy Tree"--

On an island where one child is delivered each year while the eldest is taken away, nine children live under the leadership of new elder Jinny, who trains the latest newcomer and wonders what will happen when her own departure occurs.

Fearing that the magic that has touched every other woman in her family will pass her by, Georgia spends her last summer on the island of her youth, falling in love and discovering lessons in mystery surrounding a 300-year old bird.

During one of his several adventurous voyages in the 1600s an Englishman becomes the sole survivor of a shipwreck and lives for nearly thirty years on a deserted island.