Disclaimer: Some books in our 3 for 2 clearance sale may have minor imperfections, such as slight creases or scuffs. These are purely cosmetic and do not affect the enjoyment of the book. When Bif finds a big red rock blocking his way, he decides it has to go. But how? Nothing he tries will move it. Bif’s friend Bop knows some monsters who might be able to help. When none of their ingenious methods work, they all have to decide what to do next – with surprising results! A simple and comic tale about teamwork and problem solving.