The table is made of a medieval builders of religious edifices gives the book its full quality. However, it should be a slight problem in the distribution plot of the book: if the first two-thirds of the story lull us into a medieval archaic desire, the last tier reserve a denouement perhaps a little too original not quite as advertised, but still poetic, bold and surprising. The book is recommended for adolescents 12 to 14 years, a 5th or 4th level.