In summary, I loved this book. But I suppose I should write a bit more in my review lol.
Since getting my kindle, I've read a few books where the main character has mental health issues. They have all been superb, but this one had something extra (and I'm not just talking about Bert)
As I was reading this I was thinking of Tollesbury Time Forever by Stuart Ayris. In TTF, the protagonist lives in "Tollesbury Time" and he likes it there. In this book Iain's alternative world is scary and horrid and he doesn't want to be there.
Sometimes the book meanders with banality, but that just shocks more when Bert reappears.
I suppose it would be classed as horror, but apart from a few gross bits and some shocking moments, it's not just a horror book. It's much more than that. This book is very well written and I needed to keep on reading to find out what happens.