This series of techno-suspense novels featuring artist, computer wizard and professional criminal Kidd (The Fool’s Run; The Empress File; The Devil’s Code) and his sometime girlfriend, cat-burglar LuEllen, are far fewer in number and less well-known than Sandford’s bestselling Prey books. In this entry, Bobby, Kidd’s genius hacker friend (“Bobby is the deus ex machina for the hacking community,...