Muffin Man

The Muffin Man was the main villain, albeit unknowingly, in Recipe For Disaster, the ninth book in the Franny K. Stein book series.

Personality
Muffin Man really likes making people happy and only continued making muffins because of how much people liked eating them.

History
The Muffin Man originated as the school's old furnace, which was going to be carried off by a pair of workers until Franny offered to use the furnace to make something.

Franny eventually got her idea when she tried to help with the school's bake sale and her own attempts at making baked goods didn't turn out so well. She made the old furnace into a robotic baker called the Muffin Man and told him that he couldn't do anything destructive and that he should make the best thing he could ever make.

The Muffin Man ends up making very delicious muffins, which prove to be so delectable that they succeed in the bake sale getting the funds needed for the art and music classes. However, it soon turns out that the muffins are addictive to the point that everyone eating them has forgotten about their interests just so they can keep eating muffins and that the Muffin Man is making everyone help him make more muffins.

Franny ultimately saved the day by using her Visualizer Helmet to show everyone how bleak their futures would be if they didn't stop making muffins. Even the Muffin Man saw the error of his ways and redeemed himself by remaking himself into a kiln so he could teach children pottery.

As a show of thanks for helping him see the error of his ways, the Muffin Man made Franny a ceramic plate, which he clarified was meant for one of Mona's muffins.