London, When fourteen-year-old Arthur Drake shelters from the rain in a dusty shop, the last thing he expects to find is the antique casebook of The Invisible Detective. It may have been written in the 1930s, but it's in his handwriting... London, 1936: Whatever your problem, the Invisible Detective can find the answer. He is a mystery, an enigma. In fact, the truth about the Invisible Detective is known by only four children with their own special talents. Together the children use their special skills to solve crimes and mysteries. But who'd listen to a bunch of kids? Now the gang is about to take on their most sinister case so far. When an incredible touring exhibition takes over their den, the Invisible Detective must deal with disappearing people, faceless bodies, and some deadly puppets...

A daring bank robbery leads the Invisible Detective gang down into the sewers, where they discover a hideous beast whose master is the bank robber. Reprint.

When their friend, Charlie, gets mixed up with a mad scientist who is in the process of creating an army of mutant soldiers, the Invisible Detective and his team must work to put an end to the evil plot and free their friend from the scientist's powerful grip before time runs out.

One of an exciting series of fast-paced adventures for 9-12 year olds, in which a young teen from the present finds himself sharing the memories and dreams of a boy from the 1930s. He is now one of a small gang of junior sleuths collectively masquerading as the all-seeing 'Invisible Detective'.

London, 1937: The Invisible Detective can solve any mystery, great or small - but no one's ever seen his face. Truth is, the detective is the creation of four extraordinary kids who combat crime in his name...Who is the misshapen figure stalking the streets after dark? When people start to die, the Invisible Detective is called in. But can Art and his friends find the inhuman killer before the killer finds them? The past is far from dead, as Arthur finds out when he wins the chance to spend a weekend at a country house. He may have won a competition, but he is in danger of losing everything - including his own life...

London, 1937: The Invisible Detective can solve any mystery, great or small - but no one's ever seen his face. Truth is, the detective is the creation of four extraordinary kids who combat crime in his name...AN ANCIENT CURSE A new exhibit at the British Museum is hardly a matter for the Invisible Detective. Until it goes missing. When Art and his friends investigate an ancient Egyptian curse, they discover that things are much more serious than anyone suspected. Within a hidden tomb, a timeless terror is stirring, and the dead begin to waken. In the present day, Arthur Drake and his friend Sarah find that a history project can be dangerous, and that the Invisible Detective has left them some unfinished business to attend to...

This is the seventh case for the Invisible Detective.

London, 1937: The Invisible Detective can solve any mystery, great or small - but no one's ever seen his face. Truth is, the detective is the creation of four extraordinary kids who combat crime in his name...London, today: Arthur Drake is not impressed by a publicity stunt. But if a celebrity wants to get lowered into the Thames in a glass box, that's his problem. Or is it? Soon Arthur discovers that it could spell disaster for millions of people. A Roman coin, a strange burglary, and a mysterious attack outside a graveyard. When Art and his friends investigate, they discover more than they bargained for - a missing treasure, a ghostly figure, the legend of a lost Roman legion. What has counterfeit money got to do with an ancient pagan spirit of darkness? Can they solve the mystery in time to avert disaster?