Stephen Leather's 'Nightfall: The First Jack Nightingale Supernatural Thriller'
Followed by 'Midnight'.
I am eagerly awaiting the next one which will be released in January.
One of my favourite recent discoveries. Starts out fairly normal PI type stuff. Then descends into oddness. I really like the central character Jack Nightingale. He's very well drawn.
The whole thing has a quirky dark humour. Very well written. Bags of character and a plot that keeps you wanting to know more.
Check out the Look Inside free sample:
http://www.amazon.co.uk/Nightfall-Ni...A3TVV12T0I6NSM
http://www.jacknightingale.com/