Order of the Seers The Last Seer Book III

The Seers face the ultimate challenge in The Last Seer, the third and final book in the Order of the Seers trilogy.
When the fall of one nemesis unleashes an even greater danger into the world, Lilli, Joel and the Lost Seers must stand against a new enemy with the means and the will to destroy all of mankind, starting with those they hold most dear.