A harrowing page-turner from a writer who seems to know your darkest fears. Terrific! ― David Mark, bestselling author of Dark Winter

As flawed heroes go, Cody is up there with the best in every sense and you'll find yourself worrying about him as much as the bloody terror he's facing. A thrilling series opener ― Jon Wise, Weekend Sport

The Liverpool setting makes for an interesting change, the characters are well drawn and the plot builds to a taut and tense conclusion. In all, a worthy addition to the annals of British detective fiction ― The Sydney Morning Herald

Jackson has proved himself a clever and compelling writer and A Tapping at My Door is a powerful opener... a gripping, atmospheric chiller with a spine-tingling hint of Hitchcock, a superbly drawn cast and a police procedural so authentic that it's like tagging along with the CID -- Pam Norfolk ― Blackpool Gazette

One of my top reads of 2016 . . . It's an outstanding book, and it's one that I am going to be recommending to everybody ― Book Addict Shaun

I was sucked in and had tears in my eyes and a lump in my throat. At other points, I just couldn't turn the pages fast enough. Jackson's writing is flawless. Clear and concise. To the point and cuts you when you're not looking. Utterly utterly fabulous. What a way to start a series! Highly recommended ― Rebecca Bradley, Murder Down to A Tea

A deliciously dark and compelling investigation . . . a well-executed thriller, with plenty of scope and a firm foundation for a projected series ― Raven Crime Reads

A spellbinding and spine chilling read that had me literally on the edge of my seat . . . It had me well and truly gripped from beginning to end ― Bytheletterbookreviews.com

His writing style is brilliant and a joy to read . . . Jackson has created wonderful new characters with DS Cody and DC Webley. The plot opens in best Hitchcock tradition and moves along smoothly with enough suspense to keep the reader enthralled right until the unexpected ending ― Devoted to Thrills

It takes quite a lot to render me speechless but this book did just that. There was a moment near the end that I switched off to everything around me as I wanted to give everything I had as a reader to the final few pages of the book that is definitely going to be in my Top 10 of 2016 . . . perfection ― My Chestnut Reading Tree

David Jackson is the author of a series of crime thrillers featuring New York Detective Callum Doyle. His debut novel, Pariah, was Highly Commended in the Crime Writers' Association Debut Dagger Awards. When not writing fiction, David spends his time as a lecturer in a university science department. He also gives occasional workshops on creative writing. He lives on the Wirral peninsula with his wife and two daughters. David can be followed on Twitter, where he goes under the name @Author_Dave.