Aliens land on Earth but no one can understand what they want in this Pre-Level 1 Ready-to-Read by Theodor Seuss Geisel Award-winning author Ethan Long. WARNING EARTHLINGS! Aliens have landed! And they have just one thing to say over and over again: BEEP BOP BOOP! BEEP BOP BOOP! Everyone they meet runs away in fear, scared of these three little outer space creatures. What in the world are they saying? What could they want?