RORK! [New York]: A Berkley Medallion Book published by Berkley Publishing Corporation, . Small octavo, pictorial wrappers. First edition. Berkley Medallion F1146. A government agent from Old Earth is sent to Pia 2, a remote frontier planet, to investigate the drop in the harvest of redwing, a plant used throughout the Galaxy as a medical fixative that grows only on Pia 2. Rorks are rather nasty spider-like creatures that prey on the native inhabitants of the planet -- who are the gatherers of redwing for the colonists. A bit of page edge stain splash over on edges of front cover, else a fine copy. (#152023).
"BERKLEY MEDALLION EDITION, OCTOBER, 1965" on copyright page.