Treachery Makes it Tense — Julie C. Gilbert

When a vanquished foe resurfaces with vengeance on his mind ...  Special Agent Megan Luchek expects the danger to fall to her. She does not expect her FBI partner's entire family to disappear.  Cassandra Mirren witnesses her boss's murder and gets drawn into a deadly game. Now, she has a choice - either work with agent Luchek or betray her.  Both women are about to find out that treachery makes it tense.***This is book 4 in the Shadow Council series. This is clean mystery/suspense. If you're looking for something more intense, try Scratched Off. There is a sequel series called Eagle Eyes also featuring Megan Luchek. Both series are available on audiobook either singly or as combo books. All titles are performed by Liz Brand.