Fire and Ice (Supernatural Renegades #6)
Carly Fall

Katherine McCoy, a federal prosecutor in Washington D.C., is gearing up for the biggest case of her life: to prosecute Russian mob boss, Sergio Bogrov. However, when she is attacked before the start of the trial, it becomes clear that her involvement in the litigation has put her in mortal danger.
Hoping to keep her safe, her uncle hires the elusive Joe Smith to protect her. Reluctantly, she is whisked away to a ranch in Texas and finds herself under the care of the seductive and secretive cowboy, Ruben.
At first, their vast differences has them at odds, yet an intense attraction develops as they get to know each other. When Joe Smith disappears and a horrific betrayal is revealed, their trust is put to the test as they strive to unravel the mystery of why Joe vanished.