I smiled again, wondering what the gag was. I decided to play along. "Well, well," I said, "all the way from Mars, eh? And how long have you been on Earth, Mrs. Dunny?" "Oh, about thirty or forty years. I've been here nearly all my life. Came here when I was a wee bit of a girl." "Well," I said, "you're practically an Earthwoman by now, aren't you?" The audience laughed. "Do you plan on going back someday or have you made up your mind to stay here on Earth for the rest of your days?" "Oh, I'm just here for the invasion," said Mrs. Dunny. "When that's over I'll probably go back home again." "The invasion?" "Yes, the invasion of Earth. As soon as enough of us are here we'll get started." "You mean there are others here, too?" "Oh, yes, there are several million of us here in the United States already--and more are on the way." "There are only about a hundred and seventy million people in the United States, Mrs. Dunny," I said. "If there are several million Martians among us, one out of every hundred would have to be a Martian." "One out of every ten!" said Mrs. Dunny. "That's what the boss said just the other day. 'We're getting pretty close to the number we need to take over Earth.'" "What do you need?" I asked. "One to one? One Martian for every Earthman?" "Oh, no," said Mrs. Dunny, "one Martian is worth ten Earthmen. The only reason we're waiting is we don't want any trouble." "You don't look any different from us Earth people, Mrs. Dunny. How does one tell the difference between a Martian and an Earthman when one sees one?" "Oh, we don't _look_ any different," said Mrs. Dunny. "Some of the kids don't even know they're Martians. Most mothers don't tell their children until they're grown-up. And there are other children who are never told because they just don't develop their full powers." "What powers?" "Oh, telepathy, thought control--that sort of thing." "You mean that Martians can read people's thoughts?" "Sure! It's no trouble at all. It's very easy really, once you get the hang of it." "Can you read my mind?" I asked, smiling. "Sure!" said Mrs. Dunny, smiling up at me. "That's why I said that I'd know the answers. I'll be able to read the answers from your mind when you look at that sheet of paper." "Now, that's hardly sporting, is it, Mrs. Dunny?" I said, turning to the camera. The audience laughed. "Everybody else has to do it the hard way and here you are reading it from my mind." "All's fair in love and war," said Mrs. Dunny. "Tell me, Mrs. Dunny. Why are you telling me about all this? Isn't it supposed to be a secret?" "I have my reasons," said Mrs. Dunny. "Nobody believes me anyhow." "Oh, I believe you, Mrs. Dunny," I said gravely. "And now, let's see how you do on the questions. Are you ready?" She nodded. "Name the one and only mammal that has the ability to fly," I asked, reading from the script. "A bat," she said. "Right! Did you read that from my mind?"