The renegade Arm Sylvia Bass is pinned down in the Bronx, plotting her revenge. Her guerilla forces continue to strike at civilization, causing havoc. Arm Carol Hancock, nine months pregnant and stuck in an absurd mutual tag situation with the rival Arm, Stacy Keaton, at the present can do nothing to stop Arm Bass's plans or the depredations of her hidden forces. The renegade Pattersonite Focuses continue to bedevil the Dreaming world, using it to attack Carol's allies.
Arm Bass must be stopped before she has time to consolidate her power and unleash an even greater threat. What costs will Carol and her allies need to pay to stop the greatest horror of all?