King has already established himself as an accomplished novelist, author of Domino, Ex-Libris, and the story of both dome and architect offer him plenty of rich material. The story of the dome goes back to 1296 when work began on the cathedral but it was only in 1420, when Brunelleschi won a competition over his bitter rival Lorenzo Ghiberti to design the daunting cupola, that work began in earnest. King weaves an engrossing tale from the political intrigue, personal jealousies, dramatic setbacks and sheer inventive brilliance that led to the paranoid Filippo, "who was so proud of his inventions and so fearful of plagiarism" finally seeing his dome completed only months before his own death. King argues that it was Filippo's improvised brilliance in solving the problem of suspending the enormous cupola in bricks and mortar (painstakingly detailed with precise illustrations) that led him to "succeed in performing an engineering feat whose structural daring was without parallel". He tells a compelling and informed story, ranging from discussions of the construction of the bricks, mortar and marble that made up the dome, to its subsequent use as a scientific instrument by the Florentine astronomer Paolo Toscanelli. --Jerry Brotton