An alien from another dimension threatens a science fiction writer, but the writer is a hostile alien from a different dimension.; An inventor accidentally invents a petrification device and decides to use it to turn attractive people into detailed statues. His first victim is so beautiful that he decides to release her, but accidentally petrifies himself.; Aliens from a dry desert world park their invasion fleet on a large expanse of the ocean thinking it to be a solid surface whereupon the ships sink like stones.; An unsuccessful dancer overhears the old man in the room next to him saying that his old pair of dancing shoes can make anyone a great dancer. He steals the shoes from the old man, but finds that he can never stop dancing.