The Long Walk

The Long Walk - Stephen King I remember reading this in my teens and being completely captivated by it. I was sucked in to this world as I walked along with these boys. It was my first realisation that an author can go anywhere in time and space, have the power to kill or save a character. And that not every ending has to be tied up in a nice neat bow - sometimes the reader has to do some work and decide for themselves.
To this day this story resonates with me