2011 RT Book Reviews Reviewers' Choice Award Finalist The threatening midnight calls followed Dr. Elena Gardner from one city to another, prolonging her grief. Even worse, they are echoed by the whispers of her own colleagues. Whispers that started after her comatose husband died in the ICU . . . then another mysterious death during her training. When a third happens at her new hospital, the whispers turn into a shout: "Mercy killer!" Why doesn't...