I Know What I Saw — Out Now

I Know What I Saw by J. Cronshaw is out now — a gripping British psychological thriller set in Lytham, Lancashire. Available on Kindle, Paperback, and Kindle Unlimited, and also through library apps like BorrowBox and OverDrive.

My new psychological thriller, I Know What I Saw, is out today.

This one is dark, tense, and set right here in Lancashire. If you enjoy domestic noir and British psychological suspense with a sharp, realistic edge, I think you’ll love it.


The story

“Mum, I saw Dad kill Kevin Jacobs.”

Seven words that shatter a family.

Vicky McKeating wants to believe her husband is innocent. Her daughter, Hannah, won’t back down. As gossip spreads along Agnew Street and police cars arrive at the entrance to Serpentine Walk, the question becomes impossible to ignore.

Who is telling the truth?

Set in the quiet seaside town of Lytham, I Know What I Saw explores family loyalty, small-town suspicion, and the lies we tell to protect the people we love.


Where to get it

You can read I Know What I Saw right now:

  • Kindle – available worldwide.
  • Paperback – order from Amazon and other major retailers.
  • Kindle Unlimited – free to read if you’re a KU subscriber.

To celebrate launch week, the eBook is 99p / 99c for a limited time.


Borrow it from your library

If you prefer reading through your library, you can request I Know What I Saw on BorrowBox, OverDrive, or your library’s own eBook service.

Some libraries add new titles automatically, while others need a quick request at the desk or through the app. Simply search for I Know What I Saw by J. Cronshaw and, if it isn’t there yet, ask your librarian to add it.

Supporting your local library helps other readers discover new authors, and it’s one of the best ways to keep stories like this accessible to everyone.


Why this book matters to me

This story began with a single image: a teenage girl standing in a kitchen, calmly telling her mother she’s witnessed a murder. From that moment, I wanted to write about how truth can fracture even the closest families, and how a small community can turn claustrophobic when everyone’s watching.

Lytham, with its neat red-brick terraces and quiet respectability, became the perfect setting. I walked the real Agnew Street and Serpentine Walk while writing it, soaking up the atmosphere that eventually made its way into every scene.


Thank you for your support

If you’ve been following my work, you’ll know how much I appreciate every reader who picks up my books, leaves a review, or tells a friend. Your support allows me to keep writing full-time and sharing stories set in the places we know.

So, whether you grab it on Kindle, order the paperback, borrow it through Kindle Unlimited, or request it from your library—I hope I Know What I Saw keeps you turning the pages late into the night.

You can find your copy here: [Amazon link or your preferred retailer link].

Thank you for reading,
J. Cronshaw

Composite image showing the Kindle eBook and paperback editions of I Know What I Saw by J. Cronshaw. Both covers display a dark red-brick semi-detached house under a gloomy sky, with one upstairs window glowing orange. The title appears in bold yellow capital letters above the author’s name in pale text. The tagline at the top reads “Who is really telling the truth?”. The image conveys a tense, atmospheric mood fitting for a British domestic thriller.

Read Chapter One of I Know What You Did by J. Cronshaw – A Gripping British Psychological Thriller

Read the tense opening chapter of J. Cronshaw’s new domestic noir thriller I Know What You Did. Set in Lytham, Lancashire, it begins with seven words that shatter a family: “Mum, I saw Dad kill Kevin Jacobs.”

“Mum, I saw Dad kill Kevin Jacobs.”

My fork freezes halfway to my mouth. The shepherd’s pie falls back onto the plate with a wet slap.

Hannah sits across from me, her voice flat. No tremor. No tears. Just that terrible certainty teenagers wield like weapons.

The silence stretches between us. The old carriage clock on the mantel ticks loud enough to hammer nails. Outside, a car door slams. Mrs Dawson calling her cat in. Normal sounds from a normal Tuesday evening.

But nothing about this is normal.

Matt’s knuckles have gone white around his wine glass. For a heartbeat, he looks like a stranger sitting at my kitchen table. Then he blinks and becomes my husband again.

“Honestly, Hannah.” He forces a laugh. “Drama queen as always.”

He lifts the glass to his lips.

Hannah leans forward, elbows on the scratched pine table. Her eyes lock on mine, not Matt’s.

“I saw him, Mum. On Serpentine Walk.”

Her tone carries no trace of teenage exaggeration. No breathless excitement at being the centre of attention. Just facts, delivered like a weather report.

Goosebumps prickle my arms. “You must’ve mistak—”

“I know what I saw.”

The words slice through my stumbling denial. Hannah’s gaze doesn’t waver. She has Matt’s stubborn chin, my green eyes. Right now, she looks older than fifteen.

From Agnew Street comes the distant hum of evening traffic, commuters heading home to their own families, their own problems. The sound feels wrong somehow, too ordinary for this moment.

Matt pushes back his chair. The legs scrape against the kitchen tiles.

“She’s making things up, Vicky.” He stands, smoothing down his shirt. “Attention-seeking nonsense.”

But sweat beads along his hairline despite the December chill seeping through our single-glazed windows.

Hannah stays seated. Her hands clench into fists on the table.

“Kevin Jacobs is dead, isn’t he?” she asks.

I want to laugh it away, to tell her she’s watched too many crime dramas, that Kevin is probably at home right now watching the news or polishing those awful model ships he collects.

But Kevin Jacobs. The man who organised the street’s Christmas lights competition. Who always waved when he trimmed his hedge. Who knew exactly which wine to bring to dinner parties and never stayed past ten o’clock.

Dead?

My mind scrambles for logic. When did I last see him? Yesterday morning, maybe. Or was it Sunday? The days blur together lately—freelance deadlines, Hannah’s school drama, Oliver’s nativity, Matt’s long hours at the office.

“This is ridiculous.” Matt moves towards the doorway. “I won’t sit here and listen to this rubbish.”

Hannah doesn’t flinch. She watches him go, then turns back to me.

“He came home late last night. After eleven. His shirt was dirty.”

Matt’s footsteps pound up the stairs. A door slams. The house shudders.

Hannah and I sit in the sudden quiet. The shepherd’s pie congeals on our plates. The smell of mince and onions that felt comforting twenty minutes ago now turns my stomach.

“Hannah—”

“He threw his shirt in the washing machine straight away.” Her voice stays level, matter-of-fact. “He never does the washing.”

She’s right. Matt considers the washing machine a mysterious feminine appliance, like my hair straighteners or the air fryer his sister bought us last Christmas.

“There could be any number of reasons—”

“Ask him where he was.”

The challenge sits between us. Hannah’s eyes burn into mine, waiting.

From upstairs comes the sound of Matt pacing. Back and forth across our bedroom floor.

I think of his recent mood swings. The whispered phone calls that stop when I enter the room. The way he checks his mobile constantly, jaw tight with tension.

The distance that’s grown between us, subtle as frost forming on windows.

“There was no trace of a joke in her eyes. Only certainty.”

Hannah pushes her plate away, food untouched.

“Ask him, Mum.”

But I’m not sure I want to hear the answer.

Serpentine Walk runs behind our terrace, dark and narrow between the houses and the train station car park. I’ve walked it hundreds of times, cutting through to the Tesco Express.

Now it feels different. Dangerous.

Hannah stands, scraping her chair back.

“I’m going to my room.”

She pauses at the kitchen door, hand on the frame. For a moment, she looks like the little girl who used to crawl into our bed during thunderstorms, seeking comfort in the space between Matt and me.

“I know what I saw, Mum.”

Composite image showing the Kindle eBook and paperback editions of I Know What I Saw by J. Cronshaw. Both covers display a dark red-brick semi-detached house under a gloomy sky, with one upstairs window glowing orange. The title appears in bold yellow capital letters above the author’s name in pale text. The tagline at the top reads “Who is really telling the truth?”. The image conveys a tense, atmospheric mood fitting for a British domestic thriller.