After one of the more startling crime debuts of recent years, Déjà Dead, Kathy Reichs has found herself, at a stroke, regarded as a possible contender for Patricia Cornwell's crown as queen of forensic detection novels. As the new book opens, her forensic anthropologist heroine Temperance Brennan is doing what she usually does--helping to identify remains about which there is almost nothing suspicious. In this case she is dealing with a 19th-century nun of vast sanctity, for whose beatification her relics and burial site need authenticating. What could be simpler or less menacing? Almost immediately, Tempe is called in on a bad case: arson, which has left remains so damaged that a normal pathologist cannot cope--and the victims that pathologists normally cope with include infants stabbed to death. Something sinister is going on, and whether in Quebec, where she has her practice, or the sleepy South, where she teaches, Tempe is not safe. Reichs' first book was good on the domesticity and friendship to which Tempe retreats--and this time we meet her younger sister, Harriet, who has just got rid of her balloonist lover and is looking for a new interest. --Roz Kaveney