Wandl the Invader
by Ray Cummings
There were nine major planets in the solar system, and man first established interplanetary trade and began trading with the ancient Martian civilization. And then they discovered the tenth planet – Maverick! This tenth world, if it had an orbit, had a strange orbit because it was moving inward through interstellar space, approaching Earth-Mars cosmic routes, upsetting astronautical calculations and creating confusion in the two inhabited worlds. But even so, no one doubted how much trouble this new world would bring. Because he was the VANDLE of the CLIENT, and he was not a barren planetoid. It was a manned world, full of minds and monsters, and traveling into our system for a purpose beyond astronomical accidents!