|Orbit paperback, 1982 .Cover painting by Peter Jones.|
Rear cover synopsis:
"Larry Greenberg's telepathic tendencies had been trained and developed to a critical level. The trouble was that if these psychic interchanges were strong enough, a man could end up not knowing who he really was. And when Larry's mind is taken over by a sinister alien force, he has to fight to retain his sanity - and divert a disaster that threatens all mankind."