---

Kate Reynolds knows she didn´t kill her best friend. So why did she plead guilty?

---

´A cracking thriller and a great female protagonist.´ C.J. Tudor, author of Sunday Times Bestseller The Chalk Man

´I couldn´t put I,Witness down, this is a 2018 must-read´ Phoebe Morgan, author of The Doll House

They say I´m a murderer.

Six years ago, Kate Reynolds was found holding the body of her best friend; covered in blood, and clutching the knife that killed her.

I plead guilty.

Kate has been in prison ever since, but now her sentence is up. She is being released.

But the truth is, I didn´t do it.

There´s only one person who can help: Private Investigator Madison Attallee, the first officer on the scene all those years ago.

But uncovering the truth means catching a killer.

An incredibly gripping thriller with a twist you´ll never see coming. Fans of Persons Unknown by Susie Steiner, Strike´s The Cuckoo´s Calling by Robert Galbraith, Close to Home by Cara Hunter and The Child by Fiona Barton will love I,Witness.

What everyone is saying about this gripping debut:

´An absolutely gripping thriller founded on the horror of familial abuse and a great, flawed, female PI. There will be more Madison Attalee, I hope.´ Radio 4´s Dame Jenni Murray

´Cracking thriller and a great female protagonist. Swearing, smoking, rock-music loving (and not neurotic or passive!) My kind of woman.´ C.J. Tudor, Sunday Times bestselling author of The Chalk Man

´I was swept away by this punchy, pacy thriller with its sharp characterisation and confident plotting. I devoured it in a single day. I particularly loved Madison´s fabulously chain-smoking, hyper-feminine sharpness. There were so many things done well here - the presentation of domestic abuse, dysfunctional families, the uneven dynamic of female friendships that border on bullying - so much to enjoy. So looking forward to the next one.´ Helen Callaghan, author of Sunday Times bestseller Dear Amy

´Tough and uncompromising, I, Witness had me totally gripped. I´m looking forward to hearing more from PI Madison Attalee.´ Alex Lake, author of Killing Kate, After Anna and Copy Cat´I couldn´t put I,Witness down. A hugely accomplished novel with a dark, sad story at its heart - the characters are so well drawn that I felt every twist along with them as Mackay expertly manipulates the reader. With a wonderful, chain-smoking and perfume-spraying private detective driving the narrative, this is a 2018 must-read.´ Phoebe Morgan, author of The Doll House

´Totally engaging, fast-paced and edgy ... completely captivating. I, Witness kept me guessing till the very end. Pick this book up if you´re after apage-turner with attitude.´ Elle Croft, author of The Guilty Wife

´Cutting-edgegripping.´ Sam King, author of The Choice

´Had me hooked within two pages, it has every bit as much appeal as some of the bestsellers of the last few years, like Girl on the Train.´ Robert Scragg, author of What Falls Between the Cracks

---

Cracking thriller and a great female protagonist. Swearing, smoking, rock-music loving (and not neurotic or passive!) My kind of woman. C.J. Tudor, author of The Chalk Man

---