Karin Slaughter fans have been waiting a long time for this book. The Last Widow is the 9th book in the Will Trent series. Last time we saw Will, was in The Kept Woman back in 2017. Well, it was definitely worth the wait- and you can see why it took so long (apart from Slaughter writing two stand alone novels in the mean time). The research for this book must have taken an insanely long time. It is so very detailed. I get super excited when a new Slaughter book is announced, so it is no surprise that I gave this one 5 stars. Here’s what I thought: