Renegade's Magic by Robin Hobb

A very nice conclusion to the Soldier's Son trilogy. Unfortunately it is extremely long, as Hobb indulges in a great deal of descriptive prose and her protagonist engages in rather a lot of introspection. However, those aren't enough to detract from an interesting story, and a surprisingly nuanced fantasy exploration of the clash of cultures. Neither the colonialist invaders, the conquered nomads, or the state-of-nature forest people are, in the end, any better or worse than each other. This acceptance that people are just people and that every group makes mistakes, does terrible things, and does good things is somewhat rare in fiction (especially fantasy).