Flowkwee is on a mission - he has to disguise himself as a schoolboy and spy on young earthlings, in order to help his father with his research. Here are his letters to his best friend, describing the strange earthlings who have only one head, two peepers, and no aerials, lights, whilers or even winkers! And he discovers the foolproof way to catch earthlings is to tell them to follow a sign saying 'ice cream!'