Ashen Son

Definitely serves as a bridging prequel in its series, and while it adds some background to the main storyline, it doesn't quite hit the mark as a must-read. The book offers a decent insight into the events leading up to the main series, providing context and depth to the world and its characters. However, it falls short in terms of adding significant value or compelling narratives that are essential for the overall understanding of the series.

The writing is competent, and the pace is steady, making it a pleasant enough read for fans who want to immerse themselves fully in the universe. Yet, for casual readers or those looking for critical plot points, it might not be very impactful. It's more of an optional companion to the series rather than a crucial piece of the puzzle.

In summary, “Ashen Son”is a nice addition for completists but isn't a necessary read for those just wanting the core story and main themes of the series. It's a solid three-star book that complements rather than enhances the main narrative.