Diskan Fentress was a mutant. And when he could no longer bear the shame of being an outsider among his own people, he stole a spaceship and jumped to an uncharted, frozen planet.
There Dskan met the alien Brothers-in-Fur, who led him to the ghostly ruins where long ago a great civilization had ruled.
But ohters were already here - a courageous girl, a wounded alien, and a band of outlaws determined to find the legendary treasure of Xcothal.
Diskan was the only one who could stop the outlaws - but first he had to let the Brothers-in-Fur show him the way ....
Diskan shivered. Never before had he been forced to look outside himself and guess what was real and what was not, because he had been only too well award of the real. But here the real and the unreal flowed together. He could stamp his foot on the frozen mud, feel the jar of that contact throughout his body. But last night he had been as sure of the soft water about his legs -in these same streets.
For the second time he stamped.
This was real! This was now and it was real. And, judging by those tracks, another of his kind had found it real before him.

He finds himself in a world where his mental telepathy is a factor and where he has to join with other sentients on the world to help fix the problem.
It's not one of my favourites but it's not a bad read. (