The Authority smiled an engaging smile.

“Precisely,” he said, “I see your drift exactly. You say what is the Ballplatz? I reply quite frankly that it is almost impossible to answer. Probably one could best define it as the driving power behind the Ausgleich.”

“I see,” said Rapley.

“Though the plain fact is that ever since the Herzegovinian embroglio the Ballplatz is little more than a counterpoise to the Wilhelmstrasse.”

“Ah!” said Rapley.

“Indeed, as everybody knows, the whole relationship of the Ballplatz with the Nevski Prospekt has emanated from the Wilhelmstrasse.”

This was a thing which personally I had not known. But I said nothing. Neither did the other men. They continued smoking, looking as innocent as they could.

“Don’t misunderstand me,” said the Authority, “when I speak of the Nevski Prospekt. I am not referring in any way to the Tsarskoe Selo.”

“No, no,” we all agreed.

“No doubt there were, as we see it plainly now, under currents in all directions from the Tsarskoe Selo.”