Fault Lines

When volcanologist Surtsey finds her married lover dead, she pockets his phone and makes the fatal decision to keep her discovery secret … but someone has been watching…

A cracking and highly original thrillerMark Billingham

You dont read Fault Lines so much as you white-knuckle your way through its twists and turnsMegan Abbott

A superb, highly original psychological chillerSteve Cavanagh

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In a reimagined contemporary Edinburgh, where a tectonic fault has opened up to produce a new volcano in the Firth of Forth, and where tremors are an everyday occurrence, volcanologist Surtsey makes a shocking discovery.

On a clandestine trip to new volcanic island The Inch, to meet Tom, her lover and her boss, she finds his lifeless body, and makes the fatal decision to keep their affair, and her discovery, a secret.

Desperate to know how he died, but also terrified shell be exposed, Surtseys life quickly spirals into a nightmare when someone makes contact – someone who claims to know what shes done…

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An explosive thrillerDaily Record

A cracking-good thriller with some seriously good writing and some beautifully designed characters … Heres a writer pushing the thriller envelope, giving the reader not just a good novel, but also a unique oneDavid Pitt, Booklist

Novel and elegant … it is the books thought-provoking and heart-breaking moments that carry the reader through the story and which resonate most at the endScotsman

Both a meditation on the volatility of human nature and a gripping thriller with plenty of twists and turns … An original and addictive thriller, as intelligent as it is shockingForeword Reviews

Richly characterised, beautifully crafted, this is a book that you truly inhabitEmma Kavanagh

Scotlands truest exponent of noirChris Brookmyre

A subtly off-kilter speculative thriller that builds to a truly explosive endingEva Dolan

A pacey, gripping readLouise Voss

Sexy, fearless and addictiveHelen FitzGerald

Johnstone weaves his compelling and original tale with great skill and elegance from the gripping beginning to a tense and explosive endingAmanda Jennings

Brilliantly unputdownableMartyn Waites

SuperbLuca Veste

Blending powerful imagination and plotting, this is the work of a writer at the top of his gameStuart Neville

Plays with every single emotionSusi Holliday

This had me hooked from the first pageCass Green

Poignant, gripping and packed with seismic shocksPaddy Magrane

Incisive, intelligent and imaginativeMichael J. Malone

I was completely swept awayCaroline Mitchell

Hits you lie a seismic shockDouglas Skelton

Grabs you by the throat in the first chapterNeil Broadfoot