Keeping secrets can be murder."A powerful and dramatic look into the frenzied world of emergency medicine...Lyons' characters are dynamic and genuine." Suspense Magazine Angels of Mercy ER charge nurse Nora Halloran has been living with a painful secret for three long years. But when a coworker is brutally assaulted and killed, she knows she can no longer remain silent.Determined to unmask the murderer, Nora teams up with her friends-- Lydia, an ER attending with a secret of her own; Gina, the once-cocky resident now struggling to strike a balance between her family and her job; and Amanda, a med student caught between her career and her conscience. As the victim count grows, Nora must face her deepest fears and reveal all her secrets to save the man she loves in order to stop a monster...before he returns to silence her forever.(previously published as Urgent Care)