Author(s): E. C. Tubb
ZAKYM: World of the night-rulers and the day people. A world teetering on the edge of nightmare. The Cyclan orders were clear - 'Find Dumarest. Find him before war erupts on ZAKYM.' But Zakym could hold the key to Dumarest's search for his lost home planet - and for that he would risk everything. (First published 1977)
1980. A near fine copy with light age tanning to the pages.