A woman awakes in the morning to find that someone has picked her apartment's supposedly impregnable door lock and rearranged personal items, even sitting beside her while she slept. The intrusion, the police learn, is a message to the entire city of carnage to come. Lincoln Rhyme and Amelia Sachs are brought in to investigate and soon learn that the sociopathic intruder, who calls himself "the Locksmith," can break through any lock or security system...

Lincoln Rhyme is back, on the trail of a killer whose weapon of choice cripples New York City with fear. The weapon is invisible and omnipresent. Without it, modern society grinds to a halt. It is electricity. The killer harnesses and steers huge arc flashes with voltage so high and heat so searing that steel melts and his victims are set afire. When the first explosion occurs in broad daylight, reducing a city bus to a pile of molten, shrapnel-riddled...