Mirage

Little more than two hundred years ago, only the most reckless or eccentric Europeans had dared traverse the unmapped territory of the modern-day Middle East. Its history and peoples were the subject of much myth and speculation—and no region aroused greater interest than Egypt, where reports of mysterious monuments, inscrutable hieroglyphics, rare silks and spices, and rumors of lost magical knowledge tantalized dreamers and taunted the power-hungry.

It was not until 1798, when an unlikely band of scientific explorers traveled from Paris to the Nile Valley, that Westerners received their first real glimpse of what lay beyond the Mediterranean Sea.

Under the command of Napoleon Bonaparte and the French Army, a small and little-known corps of Paris's brightest intellectual lights left the safety of their laboratories, studios, and classrooms to embark on a thirty-day crossing into the unknown—some never to see French shores again. Over 150 astronomers, mathematicians,...