What info does passapartout relay to Fix that appears to implicate Mr. Fogg more thoroughly

Passapartout confirms that he and Fogg left London in haste, and also that Fogg is carrying a large amount of cash, which consist of brand new banknotes.

"I rather think so! Last Friday at eight o'clock in the evening, Monsieur Fogg came home from his club, and three-quarters of an hour afterwards we were off."

"Yes, and in eighty days! He says it is on a wager; but, between us, I don't believe a word of it. That wouldn't be common sense. There's something else in the wind."

"No doubt, for he is carrying an enormous sum in brand new banknottes with him. And he doesn't spare the money on the way, either: he has offered a large reward to the engineer of the Mongolia if he gets us to Bombay well in advance of time."