Embrace the Night - Karen Chance

Embrace the Night is book number three in the Cassie Palmer series.  It just keeps getting more complicated and more dangerous.  Now that she's the Pythia for real she's dealing with the responsibilities of her new office in addition to the powers.  And that pesky geis is still there.  And the war mages and vampires and demons and fairies and ghosts.  She needs the Codex to find the spell to break the geis but that's proving more challenging than she thought.  Especially when she finds out who her favorite war mage really is.  Highly recommended.