One Must Die by Mark Tilbury
The Blurb:
I have both your sons, Mr Levitt. One of them must die. You choose.
Widower Sean Levitt receives the ominous message in the post a few days after his teenage boys go missing on their way to army cadets. As time progresses, the abductor makes increasingly horrific demands of Sean by sending him DVDs, and telling him to post videos online of the shocking assignments he sets him.
One Must Die is the story of one man’s fight to keep his sons alive, and the terrible lengths he must go to in order to do so.
Can Sean do what the police have failed to do and find his sons?
Or will the abductor achieve his twisted aim of destroying his entire family?
About Mark Tilbury:

Mark lives in a small village in the lovely county of Cumbria, although his books are set in Oxfordshire where he was born and raised.
He's always had a keen interest in writing and after being widowed and raising his two daughters, Mark finally took the plunge and began self-publishing. Mark's writing has earned him the name #TwistedTilbury due to the dark and twisted nature of his books. He's published 10 thrillers, and an 11th is due out 24th June 2021
When he's not writing, Mark can be found playing guitar, reading and walking.
My Review:
If there was ever a festival for nightmares, Mark Tilbury should be the master of ceremonies. As I have finished reading each successive Tilbury book, I have been left believing that the concept of evil has been taken to it's most outer limits, until the next one takes it to another level.
'One Must Die', is what it says on the tin. Sean Levitt, a widowed father, has his two teenage sons kidnapped by a cold-blooded, pitiless psychopath for no apparent reason other than to gratify the perpetrator's lust for afflicting maximum pain and suffering. Ultimately, Sean will be asked to choose which son lives and which son dies, but not before the kidnapper has had his fun, by setting Sean diabolical tasks in order to save his children from savage torture.
This book had me breathless, but then I realised that I had been holding my breath for whole paragraphs at a time, as I read my way through this nightmare journey, the condition I have named as the Tilbury Terrors.
The trouble is, it's addictive. I can't wait for the next one.