In this thrilling and romantic conclusion to Kat's Law, Dr. Kathryn Meriwether must deal with a Cholera outbreak threatening the residents she cares for in Snowberry, Idaho, a killer not armed with a gun as the one whom ex-Texas Ranger Jonathan Winthrop pursues into the Sawtooth Range, but just as deadly and unpredictable. Once again, each will handle the crisis with the skills they've been given, but ultimately will find a greater strength in facing their future together. A high valley promise will unite them as an undeniable force to meet the challenges of their frontier home.