Now, a new killer is on the loose: a criminal inspired by the Bone Collector. And Rhyme must untangle the twisted web of clues before the killer targets more victimsor Rhyme himself. The killers methods are terrifying. He stalks the basements and underground passageways of New York City. He tattoos his victims flesh with cryptic messages, using a tattoo gun loaded with poison, resulting in an agonizing, painful death.