Around the North Pole of Pluto there stands an enigma: an enormous circle of position blocks of ice, built in the pattern of Earth’s Stonehenge-but ten situations the size, standing alone in the farthest gets to of the Solar System. What is it? Who arrived there to construct it?

The secret lies, probably, in the chaotic decades from the Martian Trend, in the shed memories of those who have lived for centuries.