The Misbegotten (An Assassin's Blade Book 1

They were supposed to have been hunted to extinction. But sometimes death is a myth. Astul, assassin by day and purveyor of secrets at night, has agreed to hunt down a king slayer. Somewhat for the money, a little for the ego, and a bit for the adventure... but mostly for the money. There's just one problem. The king slayer's trail leads to a cache of disturbing secrets involving insane kings, mad queens and kingdoms suddenly poised for a war to end all wars. People seem to be losing their minds. Or rather, forfeiting them. Conjurers have returned.