Black Lightning by David and Linda Broughton
Approx. 66,480 words.
Published on September 18, 2010.
Josie Stevens is orphaned, all at the hands of a trained killer, that wants something her father had. She gets placed at a horse ranch, where it's readily apparent she has "the gift" of being able to communicate with the horses, the first is a big black stallion no one else could gentle. The killer lurks as Josie begins her new life.