Books in Jade Boy series

Eleven-year-old Jem Green works as a kitchen boy in the London household of a powerful Duke. He doesn't know who his father is and his life consists of never-ending drudgery. But when the sinister Count Cazalon pays a visit to the Duke, Jem's world is turned upside down. The Count is planning something terrible and Jem appears to be central to his wicked scheme. With the help of newfound friends—apprentice sorceress Ann, mind-speaking mute Tolly, and his pet monkey Cleo, all prisoners of the Count in his macabre mansion—Jem must find out why he is so important to Cazalon and stop the devastation the Count is about to unleash. An absorbing adventure set in the reign of Charles II, just before the Great Fire of London.

Three months on from the shattering events in St Paul's, Jem has swapped kitchen drudgery for the life of a young gentleman. But when Ann is kidnapped, Jem and Tolly are catapulted back into a world of threat and evil. After experiencing a vision of Ann on board a ship, the pair stow away on The Fortuna, heading for the American colonies. But Ann is nowhere to be found on the ship. When crew members begin to go missing and strange and sinister things start happening, Jem and Tolly realize they are in serious danger once more. What if Count Cazalon isn't really dead?