A ROSE-RED CITY, HALF AS OLD AS TIME.... Once it had been king city of a mighty empire and the center of the ancient faith; Gateway to the Gods, the old epics name it. Now it was dead, empty, deserted, only a dim ghost of its vanished splendor. Such was llionis. Lost city of Mars. A somber ruin, cold and lonely. But llionis was not forgotten. The old city held a valuable treasure. A treasure that brought Earth men Ivo Tengren and scien-tist Keresny on a strange and difficult journey to the city's gates. A journey that was now ended. llionis had been found. The treasure was close by. And now an even stranger journey was about to begin....