The first puzzle book from bestselling author Janice Hallett, featuring a brand-new mystery, A Box Full of Murders. Perfect for fans of Murdle Jnr and Cluedle. The world’s most famous puzzle creator has been MURDERED! His successor has been KIDNAPPED. A CRIMINAL CONSPIRACY is underway. Superhero siblings Ava and Luke are on the case, but this time they need YOUR HELP. From mazes and crosswords to codebreaking, Sudoku and cryptograms, work your way through the puzzles and put your detective skills to the test! You know the facts. You have all the clues. Can YOU solve the puzzles and stop the criminals before it’s too late? Based on Janice Hallett’s bestselling children’s mystery series and featuring over 100 puzzles, this is the perfect activity book for aspiring detectives aged 8–12.