The Enid Blyton Secret Series

Peggy, Mike, and Laura are staying with their horrible Aunt and Uncle while their eccentric father, Thaddeus, sails around the world, accompanied by photojournalist Charlotte Clancy.

After retreating to an island, the children befriend Jack, an orphan who has run away from home. Unbeknownst to the children, their father Thaddeus and Charlotte are still shipwrecked on an island. Uncle Henry and Aunt Harriet, having discovered that the children have run away, decide not to tell anyone in case it reveals their plans to sell Thaddeus’s estate.

As the children take shelter in a secret hideout, they soon discover the identity of the ghost on the island to be a kind, old monk who has taken refuge. Aunt Harriet and Uncle Henry attempt to prevent the authorities from closing in, having been alerted of their insidious plan by Lord Foggo, chairmen of The Explorers Club, and mentor of Thaddeus.

Aunt Harriet and Uncle Henry continue to try and prevent the authorities from finding the children. Meanwhile, Thaddeus and Charlotte find themselves facing unexpected dangers as they attempt to work together and survive on the desert island amid increasing tensions between the two.

Thaddeus and Charlotte embark on a book tour, leaving the children with their wacky nanny, Ruby. While exploring, the children discover that, close to their house, a boy is being held prisoner whose identity is revealed to be one of great importance and significance.

While the children attempt to rescue the young prince, Charlotte discovers that Thaddeus has been kidnapped from their hotel on the book tour, and she sets out on a mission to solve the mystery.

The children continue to try and outwit the kidnappers and deliver the Prince back home safely. Meanwhile, Charlotte continues to investigate the Thaddeus’s disappearance.

Charlotte discovers that Thaddeus has been captured by the King of Baronia who believes that Thaddeus was directly involved with the kidnapping of his son, the Prince.

Charlotte accompanies Thaddeus on a lecture tour on which Thaddeus will reveal exciting details of the discovery of a rare species of spider. The event is unexpectedly interrupted when sinister men steal the spider. The children have gone on holiday to the Killimooin mountains in the heart of Baronia. Unknown to the children, there are deep secrets within the pine forests.

After Charlotte is kidnapped, Thaddeus is bitten by a spider attempting to rescue her. Meanwhile, back at Killimooin Lodge, Laura is captured, and the other children attempt to rescue her, but are caught on camera, eventually becoming trapped by one of the manic Clovis Monk's traps.

The children plan to escape and rescue Laura, but soon discover that Barney, the Prince's bodyguard, is working for Clovis Monk. To her horror, Charlotte uncovers Monk's evil plan to make a world of living dead, and she is to be his first victim.

After Charlotte is captured by Block and held prisoner in the center of the mountain range, the children discover the evil Clovis Monk's plans. Thaddeus, who has set off in search of Charlotte, is reunited with the children, but can they solve the mystery, and save Charlotte in time?

When Thaddeus reveals that his application to adopt Jack has been a success, the family decides to travel to an Irish castle, run by the eccentric and volatile Ma Moon and her mysterious son Fin Bar, to celebrate. When Charlotte decides to propose to Thaddeus, he suddenly disappears. Is the castle haunted as the children believe?

As Charlotte ventures off in search of Thaddeus, Ruby finds herself a reluctant participant in Ma Moon and Fin Bar's quest for eternal youth, and the children encounter a ghostly figure on horseback, thus convincing them that the castle is, indeed, haunted.

Charlotte finds Thaddeus - much to his annoyance. Jack and Laura stumble upon a secret passage which leads to Ma Moon and Fin Bar's secret laboratory. And all are astounded by what the displaced Mother and Son are aspiring to achieve.

After realizing that they are part of a dangerous experiment, Thaddeus, Charlotte, and the children attempt to foil the bizarre plans of Ma Moon and Fin Bar.

As part of honeymoon celebrations, the children accompany Thaddeus and Charlotte to Africa, where they attempt to visit an ancient temple. They quickly discover that no matter how hard they resist, the group is drawn towards an ominous, mysterious mountain.

After a surprise attack by the inhabitants of the mountain during the night, Thaddeus and Charlotte are taken prisoner. The children begin to question if there is any validity to the native guide’s belief that the evil spirits of the mountain are responsible for their parent’s disappearance.

The children are captured and held prisoner by a mysterious tribe within the mountain. All concerned are devastated when Laura takes the place of the child goddess to preside over the apparent sacrifice of Thaddeus.

The family continues their attempts to escape the sinister and obscure tribe in the mountain, and Ruby must conquer her fear of flying to save her friends, but can she achieve her risky plan in time?