The writing style is refined, smooth, pleasant in general.
The scenario is taking if one has provisions to allow immersion in fantasy worlds, I therefore recommend more for fantasy / science fiction fans. The author also looks very well documented on the time in which the action takes place and on navigation.
Main flaw is the plot of constant back and forth through time, from one chapter to another, so it is not easy to reconstruct the frame of the scenario (for me to make a frieze, but I personally have something else to do while reading)
A therefore recommend only to the great fantasy lovers, loving puzzles!