“THE TEMPLE OF Saturn,” Pierce said as they rounded the ruins of an ancient temple that had been reduced to a foundation and eight columns supporting a worn but still impressive pediment. “The Senate and people of Rome restored what fire had consumed.”

“What?” King asked as he looked up at the impressive columns.

“The inscription,” Pierce said, panning his flashlight beam across the text etched into the pediment. “The original temple, which was the oldest structure in Rome, built in 498 B.C., was dear to the city. And when it burned down they rushed to rebuild it. In fact, they were in such a rush that one of the columns was placed upside down.”

“That’s unfortunate.”

“For the builders more than the temple,” Pierce said. “It’s rumored those responsible were killed in the Coliseum.”

“The wrath of Saturn,” King said.

Pierce shook his head. “The wrath of Rome. Saturn was the god of agriculture.”

Pierce narrated the history of Rome in hushed tones like a conspiratorial tour guide. They continued onward from the temple, following the serpentine path as it twisted past what little remained of the Milliarium Aureum. It was once a statue of Augustus Caesar where all roads in the Roman Empire were said to begin, but had long since been reduced to a marble base.

Next came the Arch of Tiberius, which was little more than a foundation for an arch, whose history and significance had been long forgotten. Beyond the arch, they walked along the side of the Basilica Julia, which stretched out on their right. A long line of marble steps led up to a large rectangular area filled with rows of foundation pylons and a mash of scattered stones and blocks. The building, which housed shops, courts, and banks had once been a favorite gathering place for Romans. So much so that checkerboards had been found carved into some of the steps. But the building held no interest to Pierce, whose narrative ended as soon as they were past that stretch of ancient city.

He paused at the corner of the Basilica Julia and raised his hands toward three, tall, fluted columns glowing orange in the nighttime lighting. The columns, which looked like they could fall apart in a stiff wind, still held a piece of entablature on top. “I give you the temple of Castor and Pollux.”

“Castor and Pollux,” King repeated, recalling his Greek history. “They were twins who helped defeat the Tarquins.” His eyebrows rose. “Also the sons of Jupiter, aka, Zeus, aka the legendary half father of Hercules. This could be it.”