Little Devil, a regular-looking tyke but with horns and tail and Spock-like ears, lives alone with a fireplace in every room--but neither the fires nor ""mean and nasty"" television can make him feel better. Nor do his friend Fritz's sweet and pretty flowers (""They would make me sick except I already am""), or his own harvest of weeds, or a night out doing not-so-terrible ""bad deeds."" (He turns houses purple and turns rocks into frogs wearing eyeglasses.) Finally friend Fritz suggests that Little Devil do a good deed and he complies, putting apples on the tree so people can make applesauce. But is that what makes him suddenly feel better, as Fritz claims? Or is it the general descent of gloom, as Little Devil's mother insists when she arrives with spider soup? As they argue it out, Little Devil decides that just to be safe ""I will stay out of the moonlight. And I will do a very small good deed now and then."" Even with Hafner's perky touch and a little backwards humor--""Don't worry, I have been very bad,"" Little Devil tells his mother on the phone. ""'Oh, good,' said Mother Devil""--it's all pretty frail.