The global bestselling series presents a Murdle Junior novel with puzzles to solve as you read!

What strange mystery lurks in the echoing corridors of Sacred Kidney School?

Best friends Jake and Sterling have hatched a plan to take on the school bully, Brick, and are ready to put it into action. But a bloodcurdling scream sends all the kids dashing to the library. Whatever's happened, there's nothing left at the scene ... and their teacher Miss Saffron has disappeared!

Who kidnapped Miss Saffron?
And who will bring her back?

Luckily, Jake is no ordinary kid - she's a junior detective. Together with Sterling and Brick, she'll lead a hunt for clues and uncover sinister school secrets. All the teachers have something to hide and everyone's a suspect! Help gutsy Jake crack the case in Sleuths on the Loose ...

Ready to solve more whodunnits? Follow the novel with Murdle Junior: Curious Crimes for Curious Minds and Murdle Junior: Ready, Set, Solve!