After becoming a captain of my own ship, I took off from earth and quickly left the atmosphere, piloting my ship on a well-known trading route to various planets which were friendly toward earth and toward exchange. We carried with us all sorts of things, that though common to us, were novelties where we were going. Everything was fine until the ship stalled. The maintenance workers were sure they could fix it but in the meantime, as we were passing a small planet which appeared to be uninhabited, I gave permission to send a small ship down so the crew could look about. I joined them and fairly soon we were down on the rocky surface of the planet. We hadn't gotten far when the ground beneath us jolted and we were thrown off our feet. There was another shudder and I realized we were not standing on a planet but on a giant monster! I even glimpsed its head before it lurched again. Several of the crew members were launched off the monster's back; the rest ...