For readers of Lisa Gardner, Tess Gerritsen, Iris Johansen, and Debra Webb Hart and Drake Thriller 2 Theres an oath doctors take, Detective Mickey Drake said. Primum non nocere, the shrink supplied. First do no harm. Two months ago Dr. Cassandra Hart was forced to kill a man. The man who murdered her best friend, almost killed Drake and seriously wounded her. Now shes back at work in her Pittsburgh ER, but nothing seems the same. When she fears that a young boy is being abused by his perfect mother, her friends and colleagues worry that shes returned to work too soon, imagining dangers that dont exist. Others accuse her of trying to cover up her own alleged mistakes in the boys treatment by making a false report of abuse. Drakes facing problems of his own, trying to cope with the aftermath of the night two months ago when his passion for Cassie led to a confrontation with a killer.