While impressed with how skillfully and casually Waltari draws upon an astonishing number of details about daily life in ancient times, I at first wondered if this book was going anywhere or had anything worthwhile to say. As the protagonist returns to Egypt from his journeys and finds himself caught up in a battle between the supporters of the gods Aton and Ammon, I realized this is that rare book that works on many levels - it's an adventure, a love story, a story of political intrigue and religious faith. Its overarching theme is the constant conflict, both in society and in the soul of the protagonist, the physician Sinuhe, between naïve idealism and cynical pragmatism.
My only complaint is that, even while the book feels incredibly accurate, Waltari goes beyond merely filling in the major historical facts with fictions of his own; rather, in many instances he contradicts them. For instance, in the novel Akhnaton is immediately succeeded by Tutankhamun because the heir apparent, Sekhenre, is murdered. In fact, after Akhnaton's death, Nefertiti and Smenkhkare ruled for several years before Tutankhamun ascended to the throne. Another example is how in the novel Horemheb's army defeats the Israelites and destroys their Arc of the Covenant, even though historical sources suggest it was still around when the Romans sacked the Temple of Jerusalem in 70 a.d. But those minor issues aside, this book is entertaining, informative, and thought-provoking.