Menewood

As much as I enjoyed Hild, Menewood was even better. Neal Stephenson's blurb for Hild sums up the two books best:

The novel resonates to many of the same chords as Beowulf, the legends of King Arthur, The Lord of the Rings, and Game of Thrones - to the extent that Hild [and Menewood] begins to feel like the classic on which those books are based.