He grinned. “A lighthouse.
”A lighthouse?” Margo laughed. “I never thought about ancient people building practical things like lighthouses, but I guess they’d need one, wouldn’t they? Especially to navigate around that island in the fog.”
”Yes. It’s almost finished. Claudius will dedicate the new harbor this year, although construction will continue through A.D. 54 under Nero, after Claudius’ death. Get your log. I want you to start recording your impressions. Just open the flap on your bag a little and press voice record.”
She did so, draping the bag around her own neck and shoulder much as he had.
”Wow That’s really something, Malcolm.- She began describing everything in sight, then started asking questions. “How long must it have taken to dig all that out? Months? Years? And look at those walls. What is that? Stone? Or concrete? And look at those piers. They’re solid stone! How’d they get those blocks into place? Say, what’s that?”
Malcolm grinned. Watching Margo’s mind come alive was almost as much fun as studying the new port to satisfy his own scholarly itch. They moved on downriver and spent the day in Ostia, prowling the wharves while merchants offloaded cargo for the river voyage up to Rome and manufactured goods arrived for export to the far-flung provinces. Ostia’s harbor was so badly silted, the town was already showing the effects of lost business to overland routes. Eventually, even Claudius’ fine new harbor would silt in and everything would come overland from Naples-until Trajan would finally build his non-silting, hexagonal-basin harbor. Almost sixty years from now, Ostia would come into her true glory as a port. But even now, Ostia was an impressive little city.