Muriel has a strong desire for a school in which children are not allowed to have fun or act like children. She is feared by all the children and is always closely followed by her teacher's pet, the equally nefarious Randall J. Weems, who is also largely despised by the other students. Her disposition plays an important part in maintaining stability within the society of the playground providing a common enemy for the children of Third Street School, as shown in the times when she is not fulfill