The Case of the Missing Doughnut

Brains invents a green sludge that will make people invisible. Unfortunately Doughnut thinks it's food, eats it, and actually becomes invisible. He decides to have some fun.Brains invents a green sludge that will make people invisible. Unfortunately Doughnut thinks it's food, eats it, and actually becomes invisible. He decides to have some fun.Brains invents a green sludge that will make people invisible. Unfortunately Doughnut thinks it's food, eats it, and actually becomes invisible. He decides to have some fun.