Book excerpt: Rancher and single dad Jack Colton must face an assassin in the thrilling first book of The Coltons of Oklahoma... A beautiful stranger appears at the Colton ranch during a party, and Jack is none too pleased. With ties to his ex-wife, Tracy McCain claims to be on a mission to bond with his son. But this intriguing widow also has a target on her back. As the Colton family brings Tracy under its broad wing, a relentless assassin puts everyone in jeopardy. Jack's protective instincts go into overdrive...and only fuel his secret attraction to Tracy. Living closely together under Jack's roof, the heat between them starts to sizzle. In fact, the only thing stronger than Jack's heady desire for Tracy is his will to keep her safe...so that one day they can become a family.