secret societies

When farm boy Homer Pudding's explorer-uncle dies and leaves him a droopy dog with a mysterious coin hidden on its collar, it leads him to The City, where they meet Madame La Directeur, the conniving head of the Natural History Museum, who is trying to steal the coin and take Homer's place in a secret society of adventurers.

Twelve-year-old Travis is invited to become a member of The Legend, Lauer Middle School's most exclusive secret society, but first he must solve seven puzzles.

The teenaged geniuses of STORM, a secret organization dedicated to eliminating the world's misery through science and technology, head to the Swiss Alps seeking the last of six scientists whose Project FIREball is of interest to MI6, the CIA, and an unknown assasin.

Siblings Becca and Doug discover important clues to their missing parents' expedition route and the location of Ur-Can, the fabled Storm City, and they embark on a perilous journey to the Takla Makan desert, racing against their uild enemies by steam train, riverboat, and airship across the Himalayas, trying to save not only their parents, but the entire planet.

In the spring of 1920, teenaged siblings Rebecca and Doug MacKenzie continue their adventures on their uncle's ship, sailing through a typhoon into the Celebes Sea in pursuit of a missing "gyrolabe" which may be connected to the disappearance of their parents.

In London, the teenaged geniuses of STORM, a secret organization dedicated to eliminating the world's misery through science and technology, uncover plans for a deadly weapon and race to find and dismantle it, then confront the corrupt scientist behind the scheme.

Teenage STORM agents Will, Andrew, and Gaia seek answers to a pair of "ghostly" burglaries in Venice, but uncover a larger plot that aims to assassinate the leading figures of international intelligence.

Having earned a scholarship to a private girls' high school, self-proclaimed psychic investigator Gilda Joyce investigates the circumstances surrounding the drowning death of a student whose ghost supposedly haunts the campus.

Thirteen-year-old James Bond, an Eton student and member of the Danger Society, travels to his cousin's home on the Italian island of Sardinia where he becomes involved in trying to unravel the mystery behind an ancient Roman society and an art heist that have left a young girl's life hanging in the balance.

The posthumous papers of Rebecca MacKenzie document her adventures, along with her brother Doug, in 1920s China as the teenaged siblings are sent to live aboard their uncle's ship where they become involved in the dangerous activities of a mysterious secret society called the Honourable Guild of Specialists.