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Her Sister’s Killer
Mari Hannah
Works of: Fiction
Chosen by The Times as one of the best Crime Fiction books in 2025.
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 taught breathless New thriller From award-winning Crime writer, Mari Hannah.
CWA Awards
- CWA Dagger in the Library - Winner
Other Awards
2010″ Northern Writers’ Award for Settled Blood.
2013 Polari First Book Prize for her Crime debut, the Murder Wall.
2019: DIVA Wordsmith of the Year.
2020 Capital Crime’s Crime BOok of the Year for Without A Trace
What crime writers say . . .
‘Such a great writer’ Ian Rankin
‘Reading her books reminds me of why I love reading so much. Incredible characters and inspired plots; the gold standard’ Graham Bartlett
‘A rich, complex and thrilling book’ Kate London
‘A classy thriller packed with pace and action, Hannah also brings real depth and human interest to the story’ Ann Cleeves
‘A treat of a crime novel’ Roxy Bourdillon
Sub-genres
Other books by Mari Hannah


The Longest Goodbye

The Lost

Her Last Request

Without a Trace

The Scandal

The Insider

The Death Messenger

The Murder Wall

Settled Blood

Deadly Deceit

Monument to Murder

Killing for Keeps

Gallows Drop

The Silent Room

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