They have been sent from the realm of normal space on a bizarre mission. They are to find and destroy the grayspace beast, a creature formed from pure energy that lurks in the vacuum called grayspace, a beast that has violated everything man has seen and learned in his quest for wisdom...
Used availability for Gordon Eklund's The Grayspace Beast
September 1976 : USA Hardback
November 1977 : USA Mass Market Paperback