Prepare for another attack of Gross-Out as our terrific trio return in their fifth adventure.

Having defeated killer earwax, sewer monsters, fairies and aliens, Gene, Gerald and Fleabag are on the hunt for an evil genius who is stealing the world's compost. In this hilarious gross-tastic book, they pursue the compost to the villain's lair on Fungipelago. Once there, they uncover a dastardly plot to destroy the world!