He's the Brotherhood's resident mind control expert, and he's also their enforcer. When Brothers like Charles Locke run astray, it's Usser's job to take them down. Normally, Usser's work runs smoothly, but he's never crossed a man like Locke before. In a matter of hours, Usser's reputation is in ruins, his airship is destroyed, and his very life is in jeopardy.

Now this charming and sly antagonist is left with a choice- stop Locke, or join him in his last ditch drive for freedom!