Knights of the Castle Series by Terri Ann Johnson, Michele Sims

Following a successful FBI sting operation, Agent Mateo Lopez accepts a new assignment that takes him into the world of illegal adoptions between the United States and other nations.Unfortunately, his love life suffers from the demands of his career. That is, until he meets the classy but “unlucky in love,” Rachel Jordan, who has sworn off relationships and commits herself to running a children’s social service agency and simpler pleasures... moreFollowing a successful FBI sting operation, Agent Mateo Lopez accepts a new assignment that takes him into the world of illegal adoptions between the United States and other nations.Unfortunately, his love life suffers from the demands of his career. That is, until he meets the classy but “unlucky in love,” Rachel Jordan, who has sworn off relationships and commits herself to running a children’s social service agency and simpler pleasures. Mateo finds himself falling for her in more ways than one, and when trouble brews in one of Rachel’s cases, he does everything in his power to keep her safe and protect the children from danger. Even if it means resorting to extreme measures.Will the choices they make cost them their lives, or bring them closer together? less