Enigma by Michael P. Kube-Mcdowell 1988 The Trigon Disunity
Condition: Crease to the spine
General wear and tear
Crease to the front of the cover towards the spine
In the sequel to Emprise, Merritt Thackery had longed dreamed of becoming a part of the Unified Space Survey, but when he is finally given his chance, he finds himself on a mission beyond the boundaries of known space to seek out an unknown enemy and win Earth's ultimate freedom.
