Matthew FitzSimmons is the author of the Constance series and the Wall Street Journal bestselling Gibson Vaughn series, which includes Origami Man, Debris Line, Cold Harbor, Poisonfeather, and The Short Drop. Born in Illinois and raised in London, he now lives in Washington, DC, where he taught English literature and theater at a private high school for more than a decade. For more information, visit him at www.matthewfitzsimmons.com.