London, Today: Arthur Drake is only just beginning to understand how he is linked the Invisible Detective's casebook written over eighty years ago. But there's no time to investigate further - a monster is loose in the city, and Arthur must get help from the past... 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 - the ones who created him. How can a daring bank robbery be linked to a missing cat? And why are the local rats overrunning houses and attacking people? Only the Invisible Detective can discover the answers as the kids hunt the robbers - and track down a monster...
BOOK OF THE WEEK - Young readers will love this gorgeous picture book about a chilled capybara who just won't be rushed.
Can you solve the puzzles to save the Kingdom? Put your puzzle skills to the test with mazes, word games and codes to crack!
The second book in this popular series celebrating friendship, magic and fighting for what you believe in.
This is Book 2 in the Invisible Detective Series. See all Invisible Detective books here.
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Justin Richards is the Creative Consultant for the BBC's range of Doctor Who books, and has written a fair few of them himself. As well as writing for stage, screen and audio, he is also the author of The Invisible Detective and Time Runners series of novels for children, and Agent Alfie for younger readers.
As well as collaborating with thriller write