Yesterday I finished All the Windwracked Stars by Elizabeth Bear.

All the Windwracked Stars is set at the end of the world, in a fantasy world derived from Norse myth. The beginning is set at the end of the world in it's equivalent of Valhalla, the rest of the book is set much later in Midgard, when that world is ending as well.

The main character is an ex-Valkyrie who ran away when her comrades were slain and has lived alone ever since. She gets drawn back into things when an old enemy pops up, and she tries to save the world one last time. In addition to these struggles, the novel also features some intense and somewhat violent sexual scenes, somethat that seems de rigueur in many modern fantasy novels written by women.

An interesting, and very dense novel. The use of a mythology that hews closer, in some ways, to it's origins is well done.