Echo Heron is the author of the bestselling Intensive Care: The Story of a Nurse; Condition Critical: The Story of a Nurse Continues; and the medical thrillers Pulse, Panic, and Paradox. She was a critical-care nurse in the San Francisco Bay Area for eighteen years and is a spokesperson for nurses and patients' rights. Ms. Heron and her cat, Mooshie, currently reside in California.