J.

Three women in three worlds:
Dr. Ann Lucas, former NASA scientist and now a drugged and helpless mental patient, in a reality almost but not quite our own.
Mad Jack, one eyed gunwoman and lover of women, in a ruined and lawless wasteland world.
Jay Younger, living in the here and now, known to her readers simply as Jay -- a science fiction writer whose literary career is on the brink of disaster, an alcoholic and emotional wreck.
When the impossible becomes real and boundaries between worlds start to dissolve, the fates of these three tormented, brave and intense women come together in a remarkable and daring story that examines the basic nature of reality and of human identity.