The nursery rhyme book 'Mother Goose' saved Earth through misinterpretation. The Martian leader, Think-Tank, decoded the rhymes literally and believed them to be threats from a highly advanced Earthling civilization. When they saw the rhyme about Humpty Dumpty's great fall, they mistook Humpty for their own master (who resembled an egg) and thought Earthlings were planning to capture and kill him. Terrified by this perceived threat and Earth's "advanced" knowledge, the Martians aborted their invasion and fled back to Mars in panic.