If you want an apocalyptic horror story, pick up his first book in the Hell on Earth series, The Gates.
Not a lot scares me when it comes to horror, but, I was a little creeped out when I was reading it outside . . . In the dark . . . The wind blowing . . . And unknown critters running around. I have to say, I ran inside lol.
In the beginning of the book, a weird black stone was found in a random spot. Soon, the same stone was placed in random parts of the world, thousands of them. You then start to meet main characters (I would not get too attached). Before you know it, the black stone opens up the gates of Hell. Demons and fallen angels start flooding onto Earth and just killing everyone that they come in contact with.
When I finished the first book, I am thirst for more, so of course, I plan on getting the others soon, just to find out what happens in the end.
Iain has written over twenty books and he is one of most successful horror and suspenseful writers in the UK.
You can follow Iain Rob Wright on the following sites