Solving mysteries is a risky business. But no mystery is too big for Holly, Miranda and Peter . . .
A chance to meet the actor who plays Secret Agent John Raven on TV - it's what the Mystery Kids always wanted!
But John Raven isn't too polite when they approach him in the park. So the three friends follow him - and what they see him do gives them a big surprise.
Is the Mystery Kids' hero up to no good?