Martin Moone is about to finish primary school and feels he hasn't achieved very much. He's desperate to get his picture on the school's Winners' Wall and decides that entering the Invention Convention science competition will definitely earn him everlasting respect. But Martin - along with his teammates Trevor, Padraic and the ever terrifying Declan Mannion - is having trouble coming up with a winning idea.
Martin's imaginary friend, Sean, comes to the rescue, and 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. And 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 and Nick Vincent Murphy

Chris O'Dowd is an award-winning actor, writer and director. He has appeared in many films, including Bridesmaids, The Sapphires and This Is 40. He has also starred in cult TV series The IT Crowd, Family Tree and Girls, and on Broadway in Of Mice and Men with James Franco. He writes, directs and stars in Moone Boy, the Sky TV series, on which he collaborates with his friend Nick Vincent Murphy. Chris is from Roscommon, Ireland, but is currently based in LA. He studied politics at Dublin University before training at LAMDA.
Nick Vincent Murphy is an Irish screenwriter from Kilkenny, now based in LA. He studied English and History at Trinity College, Dublin, and did a Masters in Film Production at the Dublin Institute of Technology. In 2007 he was a writer on the acclaimed television comedy-drama series The Running Mate, and in 2010 his first feature film, Hideaways, premiered at the Tribeca Film Festival before going on to win the Méliès d'Argent Award for Best European Film at the Strasbourg Film Festival. In 2010 he co-wrote a short film, Capturing Santa, with Chris O'Dowd, as part of the Little Crackers series for Sky, which they then developed into comedy series Moone Boy, winner of an International Emmy for Best Comedy.