Restoree

Torn from Earth by a bizarre and nameless black force, Sara has no idea where she is or why she inhabits a beautiful new body. Controlled by brutal guards and tamed by terror, she can not comprehend her role as a nurse for a man who appears to be an idiot. She discovers that the planet she had been brought to was Lothar and that the man she was caring for was its Regent, Sara knows the restorees had to escape. When they do, they become fugitives on a world of multiple evils. (adapted from the back cover of the Baen edition)