Hidden Enemies Terri Reed, Lenora Worth
K-9 Unit books in order
- To Protect from Harm Valerie Hansen, Sharon Dunn
- Chasing Danger Christy Barritt, Hope White
- Trained to Rescue Elizabeth Goddard, Mary Ellen Porter
- Deadly Risk Dana Mentink, Margaret Daley
- Peril from the Past Dana Mentink, Shirlee McCoy
- Tracking the Truth Sarah Varland, Sharee Stover
- Moving Targets Lynn Shannon, Heather Woodhaven
- Deadly Alaskan Pursuit Terri Reed, Maggie K. Black
- Strength and Valor Becky Avella, Mary Ellen Porter
- Guarding the Witness Laura Scott, Heather Woodhaven
- Duty to Protect Lisa Phillips, Carol J. Post
- Lethal Rescue Elizabeth Goddard, Margaret Daley
- Deadly Pursuit Dana Mentink, Lynette Eason
- Hearts of Courage Valerie Hansen, Terri Reed
- Necessary Valor Lynette Eason, Lenora Worth
- Finding Justice Shirlee McCoy, Laura Scott
- Danger Trail Lynette Eason, Margaret Daley
- Police Protector Terri Reed, Lenora Worth
- High-Stakes Investigation Dana Mentink, Liz Shoaf
