Ivy is still reeling from the traitorous acts of her ex! he took HER work and tried to sell it to the highest bidder. She sadly has been tarred with the same brush, now her reputation is in tatters and people are starting to beliece the lies that he spread that she wasn't as smart as they were led to believe or that the invention had been HIS idea! She managed to secue a new job and is using her new technology to map archeology sites, a peaceful application for her work. Mapping an underwater WWII battle site is perfect for her. But she meets the hot, handsome and intriguing Jack at a party and before she knows it she is up to her neck in more intrigue! Jack Keaton is, well...not Jack Keaton. It's a convenient cover for his work in the Palau area. But he didn't think he'd be this attracted to Ivy. She was meant to be a means to an end, a way to save his sister and his nephew from the hell he felt responsible for. But can he really just dupe Ivy into parting with her work or will he see that there is more between them than he thought? There was a major WTF moment in this! Did not see that plot twist coming. Jack is endearing, even when you know he has nefarious plans for Ivy! Ivy is smart as hell, sexy without knowing it and a helluva action hero!

Ivy MacLeod travels to Palau in order to test her new mapping technology in the area around the island where a battle took place during World War II. Now that her husband has been captured and is being tried as a traitor, Ivy feels she must do all she can to prove that she wasn't involved in her husband's deceit. However, her new mapping technology is wanted as a way to gain intelligence for our own as well as rival governments, causing Ivy to be at risk when some of her ex-husband's men try to steal her equipment. Lucky for Ivy, Jack Keaton, the man she had been admiring on the boat docked next to hers, comes to her rescue. What she doesn't know is that Jack is really a Russian agent, and he is about to kidnap her in order to use her technology to find something of value that he needs. Poison Evidence has lots of political intrigue, constantly challenging the reader to distinguish the good guys from the bad. Nothing is black and white in this story, so we go on the journey with Ivy to find out if, Jack, the man she is falling in love with, should be considered a traitor or a hero. Characters from previous Evidence Series books make appearances as minor supporting characters. Overall, this is another good entry in the Evidence Series.