Lisa the Skeptic

During an archeological dig in Sabertooth Meadow, the students of Springfield Elementary School unearth a strange skeleton of what appears to be a winged human. Everyone in town believes that it's an angel's skeleton, but the ever-logical Lisa doesn't think so. As she tries to find out the skeleton's origins, Homer exploits the miracle by charging people to see it--and things get really scary when the angel skeleton predicts that the end of the world will come.