Operation Angelica by Juliene Lloyd

Operation Angelica features Elizabeth Ashton, a promising FBI agent with a bright future. That is until her fiancé  is killed by a South American drug lord.
When the government won't help her, she takes matters into her own hands.
Certain that she will eventually be found out, she is surprised when a consulting firm offers her a job rather than turning her in. 
Sent on a mission to Colombia, Elizabeth must use all her skills to survive and rescue a group of hostages.

Operation Angelica was an intriguing read with a great central character. Elizabeth is a strong, resilient woman who has suffered a terrible loss. You can understand her motivations for taking out the drug lord. 
Each character is well written with a strong back story. 
I thoroughly enjoyed this book and would recommend it to fans of spy novels and  action adventure.