Can humanity still exist after an excursion into an alien space-time dimension?
The interstitial interpreter had shown Mickey Croft, Secretary General of the United Nationals of Earth, a universe beyond Mickey’s comprehension. That historic meeting had created an Earth ambassadorial mission into the alien space-time dimensions known as “Unity.” And to of Earth’s valuable children had also vanished into Unity, star-crossed lovers fleeing the wrath of their powerful parents. Now the children had returned, bringing a message to Croft. The Unity would welcome expanded contact with the UNE. Bit to accomplish this, Threshold — the space station that was the center of human government, commerce, and entertainment — must be moved out of Earth’s orbit to an orbit around Pluto. The Unity had made its offer, stated its terms. Now the UNE must respond. But how could Mickey Croft make an unbiased decision for all humankind, when his own direct contact with the Interpreter had left him uncertain whether he himself was still completely human?