Middlegame (Alchemical Journeys, #1)

by Seanan McGuire

Here is a secret about powerful men, one they would prefer go unspoken: their arrogance is one of the greatest forces in the universe. Even the most paranoid among them see what they want to see, believe what they want to believe, and this creates cracks through which the clever may insinuate themselves, changing the story around them.