Twenty minutes earlier, Holmes had walked past Feng Bujue and sat down next to the professor and placed his cigarette box on the table. "How did you know the professor has a partner?"
Feng Bujue smiled. "There are six chairs here, aren't there?"
"Just because of that?" Moriarty asked.
"Is that not enough?" Feng Bujue leaned back in the chair and opened his arms. "Your pursuit of accuracy and order has become your instinct. How could a meaningless item appear in your 'psychological world'?"
He knocked lightly on the table twice. "Theoretically, assuming all four of us travelers from another world arrive here, counting yourself, there will be five people, so why is there a sixth chair? Simple, because there is one extra person."
"Then, how did you know the extra person has to be the professor's partner and not another guest?" Holmes asked.
"Because my guess was that the extra person is you," Feng Bujue replied.
