Luke and his brother have swapped bodies by accident. Zack's got Luke's weird feet while Luke has Zack's SUPERPOWERS! Now he needs another world-threatening adventure to try them out. Could a family mini-break at Great Minds Leisure Park be his chance? Probably, because that's where his super-clever arch-enemy lurks, fermenting dastardly plans and bubbling gently...

My Arch-Enemy Is a Brain In a Jar is the fourth instalment of Luke's laugh-out-loud adventures. From the author of My Brother Is a Superhero, and My Gym Teacher Is an Alien Overlord. Books don't come much funnier than these! Packed with heart and soul, this series is perfect for fans of David Baddiel and David Walliams.