The author, William Dietrich, has revolutionized his character, Ethan Gage, in this fourth tale of the series. The preceding books in the series became a bit formulaic, centering around the adventures of Gage, which included womanizing, gambling, and poor judgment.
In this adventure, Gage has turned a page (sort of) and is trying to reform his ways-no women, a little gambling, and improved judgment.
Unfortunately, he re-entangles himself and three savants (Robert Fulton, Georges Cuvier, and William Smith-all actual historical figures from around the 1800s) with Napolean. The self-appointed French Emperor tasks them to track down a missing mirror, perhaps located on the Greek isle of Thira. This is not simply any mirror, rather Archimedes mirror of legend-the one able to burn ships by reflecting the sun's rays.
As it happens, Gage's old nemesis, the Egyptian Rite, are on his trail. This time they are led by the one and only Aurora Somerset, the wicked and demented Englishwoman from Gage's last adventure in America (The Dakota Cipher). She and the Egyptian Rite are out for revenge...and the mirror for world domination.
This time Gage does not have his famous long rifle nor his tomahawk. But he is reacquainted with a former love-Astiza. And she has a surprise for him. Quite a few twists and turns, which pit Gage and his savants against Barbary Pirates, the Egyptian Rite, and Aurora.
Quite a good tale with the usual historical facts as the backdrop, and glad it broke from the formula-mostly.