Reignfell: A Queen's Folly, A King's Return

The magic in our world died with the Fae Queen Elowyn, the last of the fae. The last trickle of magic in the world can only be touched by their half human descendants the Aurors. Over the centuries even the Aurors magic faded, and now they must work together to do what could once be done alone. Then after nearly 3000 years since the last fae walked these lands, a young Fae named Alden appears. With him the trickle of magic in our land erupts into a flowing river. His coming brought destruction, creation, and reignited a war from ages past.

(If you like complicated adult fantasy, like The Wheel of Time or Name of the Wind, I think you might like this. There are lots of different characters, and magical and political shifts of power.)