Marion Zimmer Bradley wrote some of the finest science fiction in print. In this story, Dr Jay Allison has a split personality. One side is a cool, emotionless parasitoligist; the other is a free-spirited adventurer. The latter has been held firmly in control by the former for many years, but now it needs to be called forth to save the Terran colony on the planet Darkover. A plague of Trailmen's Fever threatens to wipe out every Terran on the planet. The free-spirited part of Dr. Allison is needed to lead a party deep into Trailmen's territory to beg their assistance, but then the parasitologist's knowledge is needed to create the cure. Will the experiment to separate and then rejoin the personalities succeed? And will it be in time for the colony to survive? Download and start listening now!