Body of Evidence by Lenora Worth

When Texas Ranger Anderson Michaels goes undercover at an animal rescue farm in Texas Hill Country, he lands right in owner Jennifer Rodgers's path. Before long, he realizes that tracking down his target--a deadly drug-trafficking ring that was responsible for the murder of his captain--may be easier than winning this jaded woman's trust. Experience has taught Jennifer to keep her distance from adventure seekers. But her life will depend on her ability to push aside her fears--and trust Anderson to keep her safe.