The sixth book in Dav Pilkey’s mega-bestselling Captain Underpants series, now available in Sound-O-Rama!

George and Harold are up to their older tricks again, so when their most recent prank makes a direct hit on school brainiac Melvin Sneedly, he decides to get even! However in the blink of the eye – and the sneeze of a nasal area – Melvin will go from snooty to snotty, as well as the Bionic Booger Boy is born! Can Captain Underpants tidy up this catastrophe, or will the mucous monster make a mess of issues?

The Captain Underpants series is ideal for listeners of all ages. Like the various other outrageously funny books by acclaimed author and Caldecott Honor illustrator Dav Pilkey, this adventure is sure to end up being hours of fun!