I liked the first two books in Ruckley's Godless World setting. The concept of a world abandoned by the Gods isn't exactly new, but combined with the pseudo-Norse winter setting, gritty and realistic writing and a high mortality rate amongst the main characters it seemed to be building nicely to a conclusion.
I felt that Fall of Thanes pushed on relentlessly but with no real pace. Events grind on to an all too inevitable conclusion, like a Greek tragedy on ice. The ending is telegraphed from the first few pages and I had no sense of involvement, finding myself skipping paragraphs at a time to get to something worthwhile - because there are only so many times you can read about how the hero is being chased through a wintry forest by Kyrinin. Again.
I am sure Ruckley can do better than this, but I am not sure that I would want to return his Godless world settign again unless any further book are radically different. A disappointing end to a series that promised more.