Code Trauma by Lynette Eason

This novella is part of the Extreme Measures series and comes after Life Flight.

Flight Nurse Practitioner, Holly Cooper, has an enemy who wants her gone from the hospital one way or another. She and her fiancé, Detective Andy McKittrick are “taking a break”, and a patient has died under mysterious circumstances. Life is complicated at the moment so when she’s attacked, her friends—and “on hold” fiancé come to the rescue. Andy may have his issues, but he’s never stopped loving Holly. When he hears someone is out to get her, he races to her side. Can they find a killer before the killer succeeds in sending Holly six feet under?