London, today: when fourteen-year-old Arthur Drake shelters from the rain in a dusty shop, the last thing he expects to find is an antique casebook of the Invisible Detective. It was written in the 1930's, but it's his handwriting…
London, 1936: The Invisible Detective can solve any mystery, great or small- but now one's ever seen his face. Truth is, the detective is the creation of four extraordinary kids who combat crime in his name…
When a spooky exhibition comes to town, the gang must deal with disappearing people, faceless bodies, and some very deadly puppets…Can the Invisible Detective thwart a plot to bring the whole country to its knees?