This book intertwines the true tales of two men during the 1893 Chicago World's Fair: Daniel H. Burnham, the architect responsible for the fair's construction, and H.H. Holmes, a serial killer masquerading as a charming doctor. The narrative alternates between the story of Burnham, his challenges and successes in building the fair, and the chilling story of Holmes, who used the fair to lure his victims to their death. It's a vivid portrayal of the Gilded Age and a chilling exploration of one of America's first known serial killers.

Set in 1930s New York, this novel follows the life of a young boy named Edgar as he navigates through the complexities of family life, school, and the exciting spectacle of the World's Fair. The narrative is a blend of Edgar's memories and his older brother's diary entries, painting a vivid picture of the Depression-era Bronx, the looming war, and the technological wonders of the fair. The boy's experiences and observations reveal the socio-cultural dynamics of the time and the transformative power of the fair, which symbolizes hope and progress amidst the bleakness of the era.