"Adam and Alice are reaching the age when some of the children created by the fertility treatment that spawned them begin to turn feral. Will they succumb to the same physiological horror that destroyed their parents? Every change brings on terror--the voice cracking as it changes, the swelling of the breasts, the coarsening of down into actual hair. Their aunt, Cynthia, oversees renovations to the Twisden family's Manhattan residence--torn apart...