Newly promoted Inspector Frankie Oliver has always been consumed by the idea of finding her sister's killer and bringing them to justice.
But when new evidence about the tragic unsolved murder comes to light, and her former boss DCI David Stone embarks on an investigation without her, everything starts to unravel.
After decades without answers, who knows where the trail might lead? And will knowing the answers be the very thing that breaks Frankie irreparably?
The past and present collide with devastating consequences in this taut, breathless new thriller from award-winning crime writer Mari Hannah.
Her Sister's Killer by Mari Hannah was published on 6 March 2025 by Orion, and is book five in the Stone and Oliver series. My thanks to the publisher who sent my copy for review.
Whilst Her Sister's Killer is book five in this series, it can easily be read as a stand alone novel. The author is skilled in creating back stories that enhance the current plot but also inform the reader. Saying that, I would advise that any new reader takes the plunge and reads the complete series.
Frankie Stone and David Oliver have been partners, both professionally and personally for a while. Their personal relationship is something of an on/off affair, but they are fond of each other, not really being able to let go.
Frankie has recently been promoted to Inspector and as part of this process, she must leave the Murder Investigation Team and spend some time in a very rural area of Northumberland, she also has to wear uniform again. Frankie's absence is beneficial to David as he's acting on loose talk overhead at a social function and has re-opened the investigation into the death of Frankie's sister.
Frankie's sister was murdered in 1992, and that tragic event has totally overshadowed her life, and her parent's lives ever since. David is determined to get to the bottom of the long unsolved crime, but needs Frankie out of the way whilst he is working on it. It becomes clear that he also needs to remain as silent as he can about what he's doing when he's in the office surroundings. His suspicions do not fall very far.
As Frankie becomes more involved in the criminal goings on in her new patch, dealing with some dark and emotionally challenging issues that she really didn't expect; David also becomes more and more engrossed with his investigations.
Mari Hannah has given her readers a crime novel with a dual plot and it's very very cleverly done. Her characters are solid and lifelike and the plot is tension filled and absolutely gripping. Add the incredible sense of place that Hannah details so extremely well and you have a crime novel that is up there with the best of the year so far. Highly recommended by me.
Mari Hannah is a multi-award-winning, bestselling author/screenwriter.
She writes across three crime series: DCI Kate Daniels (in development for TV with Sprout Pictures & Atlantic Nomad); Stone & Oliver and Ryan & O'Neil.
Among her numerous awards is a Crime Writers' Association Dagger in the Library 2017.
In 2019, Mari was the programming chair of Theakston's Old Peculier Crime Writing Festival.
In 2020, she was the recipient of Capital Crime International Crime Writing Festival's Crime Book of the Year.
She lives in rural Northumberland with her partner, an ex-murder detective.