FREAK MUSEUM by R. R. Ryan
#11 Freak Museum. RRR had a genius for putting her characters in horrid situations. This time her heroine is an unwed mother who falls into the clutches of a gang of mad scientists who create monstrous freaks from newborn infants-or are the freaks real? A battery of stock detectives die horribly trying to find out.
– Karl Edward Wagner, 13 Best Science Fiction Horror Novels (Twilight Zone Magazine 1983)