New York: Atlantic Monthly Press, (2005.). First edition - The author's first novel - "a lively, meticulously researched historical novel that brings to life the 13th century and the brilliant and controversial Holy Roman Emperor Frederick II.... with Europe just beginning to take shape as city-states, while the papacy clings to its temporal power. Into this era of shifting borders and alliances steps a legendary leader --the ingenious maverick Frederick II." 419 pp.