We left the Gare du Nord on the overnight train—me and my two French handlers from the SDECE. They had names now—names and passports—although it seemed unlikely that their names were real, especially as I now had a passport myself—French—in the name of Sébastien Kléber, a traveling salesman from Alsace. The Frenchman with the eyebrows went by the name of Philippe Méntelin; the Insomniac was calling himself Émile Vigée.

We had a sleeping compartment to ourselves, but I was too excited to sleep, and when, nine and a half hours later, the train pulled into Hannover Railway Station, I uttered a quiet little prayer of thanks that I was back in Prussia. The equestrian statue of King Ernst August was still in front of the station, and City Hall with its red roofs and green cupolas looked much the same as I remembered, but elsewhere the city was very different. Adolf Hitler Strasse was now Bahnhofstrasse; Horst Wessel Platz was now Königswerther Platz; and the Opera House was no longer occupying Adolf Hitler Platz but Opern Platz. The Aegidienkirche on the corner of Breite Strasse was a bombed-out ruin, overgrown with ivy and left that way as a memorial to those who had died during the war. Elsewhere, the city was hardly recognizable. One thing hadn’t changed, however: It’s said that the purest German is spoken in Hannover; and that’s certainly what it sounded like to me.

The safe house was in the east of Hannover, in a large wooded area called the Eilenriede on Hindenburg Strasse, close to the zoo. The house was a largish villa in a smallish garden. It had a red mansard roof and an octagonal corner tower with a silver-steel cupola. This tower contained my room, and although my door wasn’t locked, it was hard to rid myself of the impression that I was still a prisoner. Especially when I mentioned to Émile Vigée that I’d seen two suspicious-looking men from my Rapunzel-like vantage point.

“Look there,” I said, inviting him into my room and over to the window. “On Erwinstrasse, is it?”

He nodded.

“Those two men in the black Citroën,” I said. “They’ve been there for at least an hour. From time to time, one of them gets out, smokes a cigarette, and watches this house. And I’m pretty sure he’s armed, too.”

“How can you tell from here?”

“It’s a warm day, but all three buttons on his suit are done up. And every so often he adjusts something on his breast.”

“You have keen eyes, Monsieur Kléber.”

Every time Vigée spoke to me now he called me Kléber, or Sébastien, to help me become accustomed to hearing this name.

“I used to be a cop, remember?”