Martin Moone is about to finish primary school & feels he hasn't achieved very much He's desperate to get his picture on the school's Winners' Wall & decides that entering the Invention Convention science competition will definitely earn him everlasting respect But Martin
- along with his teammates Trevor Padraic & the ever terrifying Declan Mannion
- is having trouble coming up with a winning idea Martin's imaginary friend Sean comes to the rescue & together they concoct a plan to beat the snooty kids from the posh school in town If they can get their hands on some Notion Potion a mythical brain-boosting beverage then Martin will have all the ideas he needs & so the gang embarks on a dangerous (imaginary) journey in their quest to become ' Boyle's first Junior Genius' The Notion Potion is the hilarious third book in the Moone Boy series based on the Sky TV series from dream team Chris O' Dowd & Nick Vincent Murphy