With a series of ever more accomplished novels, David Baldacci has been building something of a reputation for himself as one of the most reliable practitioners of the modern crime/thriller novel. The emphasis is, of course, usually on Baldacci's métier, the legal arena, and it's clearly the field he is most comfortable in -- as in Simple Genius. His long-term protagonists, Sean King and Michelle Maxwell, have found that the aftermath of their last case has stayed with them in an unpleasant way, and Michelle is obliged to undergo therapy. Sean, his financial circumstances straightened, takes on a job. A scientist is dead in a nearby town -- the scene of the (possible) crime is a clandestine research institute peopled by a large cast of neurotic scientists. There are secrets galore to be unearthed here, and just across the river from the institute there is another clandestine institution, the CIA training ground, Camp Peary, where the dead man's body was originally discovered.