Shifty McGifty and Slippery Sam: The Diamond Chase by Tracey Corderoy

Shifty McGifty and Slippery Sam have swapped their life of crime for a career in cupcakes. But when they're asked to bake for a seriously swanky party, they find themselves caught up in the middle of a robbery. Somebody has taken Lady Kate's tiara. Can they catch the culprit?
Binding: Paperback / softback