The Paris Metro began operations in 1900, nearly forty years after the London Underground. It was said this was due to route-planning issues; from its very design, it had been intended to prevent people within the city from flowing out into the suburbs.
In short, Paris beneath the ground was nowhere near as complex in 1870 as it was now. Likewise, some "landmarks" that applied in 1870 could no longer be used in 2005. To locate the target, they could only rely on "feeling."
From before the Common Era to the twentieth century, construction had never ceased on this land, aboveground or below. Perhaps only an "old man" like Nicolas Flamel understood what lay beneath Paris, and only he could stop Grindelwald from destroying the city.
Unlike other cities, whose layouts might not have changed for centuries—such as Bern, the capital of Switzerland. Severus and Pomona had once gone there together to see the bears in the Bear Pit.
It had been winter then. Not only had the bears been hibernating, but the flowers in the Rose Garden had not bloomed either. Yet they had still been very happy.
That black dog led him toward a bear like a hunting hound.
More precisely, it was a dead bear. The gunshot just now had apparently struck it, but the bullet had missed any vital spot. It had run for a while before collapsing and dying.
The bear reminded him of Pomona. When he had returned that day, she too had been lying on her side like that.
She was still alive, her chest rising and falling faintly, and her eyes were closed—not wide open like Lily's.
"Godfather!" Draco called.
Severus froze for a moment, then took out the communication crystal. Draco's face appeared on the other end.
"We're safe," Draco said.