I like David Gemmell's books for telling a story without any unnecessary waffle. This is no different: in 300-odd pages tells a tale that would have taken three 1000-page epics from another author! There are clear moments when I was aware of 'missing' psychological explorations and deep musings on the whys and wherefores of the characters' thoughts and feelings - aware, but not desperately sad to miss them!
The story itself brought to mind elements of Mad Max, with a hefty dollop of Stephen King's Dark Tower series. Jon Shannow is a gunslinger; he's chasing his Jerusalem rather than a Dark Tower, but still the same broad themes.
Shannow lives several hundred years in our future, when Armageddon has reset civilisation to that of about 1850s America. Think pioneers and horses, outlaws and guns. Shannow himself is on a self-imposed quest, to find some meaning to life. He's a 'man of the book', bringing justice to brigands and quoting bible passages (strictly old testament!) as he blows holes in them. But can even he stand up to a 300-year-old man who has mastered the sipstrassi bloodstones, rock fragments imbuing the holder with magical powers?
As I said, it's quite a pared down story, cramming in action without pausing for too much reflection. Which makes a nice change, really! And despite being one of three Jerusalem Man books, Wolf In Shadow stands alone quite nicely, finishing with a surprisingly satisfactory rounding off.
Recommend to those who like this genre, for a light but suitably engrossing read.