The Bestseller: the addictive and suspenseful debut thriller to keep you gripped in 2026 Paperback – September 10, 2026

Real Readers are captivated by Jenny Knightsby's debut:'It really blew me off my chair, and I had to keep reading until the last page was turned!' ⭐⭐⭐⭐⭐'I loved how messy and human the friendships felt, and the moral dilemmas really keep you hooked' ⭐⭐⭐⭐⭐'This one gave me tension, moral chaos and that slow creeping dread I live for in a psychological thriller.' ⭐⭐⭐⭐⭐'Jenny Knightsby, whatever you write next, I will read. Put The Bestseller on the top of your TBR list now!' ⭐⭐⭐⭐⭐YOU TOLD HER YOUR DARKEST SECRETS.NOW MILLIONS WILL READ THEM . . .Therapist Helena Salve knows that client confidentiality is the number one unbreakable rule of her job. But the constant stories of coercive control and threat she hears from her client Belle about her dangerous husband have been wearing her down. One night over too many glasses of wine, she tells her best friend Tala everything that Belle has told her.The problem is, Tala is a down-on-her-luck novelist who is looking for an idea for her new thriller.Months later, Tala is excitedly telling Helena that her publisher is saying this is going to be her biggest book ever. The story is Belle's story. Not only is Helena's job on the line, but if Belle's husband is as dangerous as she says, her life is too...Why would Tala do this to Helena? She knows what's at stake.Your friends are meant to protect you... aren't they?Praise for The Bestseller:'What a unique premise and so well executed. Tight plotting, and great characters. THE BESTSELLER is set to fly. I loved it!' - LOUISE SWANSON'Brilliant and chilling . . . I tore through the pages' - SARAH EASTER COLLINS 'A dark and compelling exploration of the depths of platonic love, and how far a woman will go to protect the person she loves most' - NAOMI WILLIAMS 'My favourite kind of thriller. Smart and nuanced with twists I didn't see coming. I relished every page' AMY MEYERSON Read more