In 1908, Phileas Fogg, the man who went around the world in eighty days, died of pneumonia. Jean Passepartout, his assistant, had inherited everything Fogg owned, and so became a nobleman himself. One day a few months afterward, Passepartout wagered £500 with his fellow members at the Reform Club that he could do something even more impossible than his benefactor's feat of octogesimadiurnal circumnavigation.
"A month from now," stated Passepartout, "I will attempt to drive a horse carriage from London to Paris and then to Berlin within the span of three days. If I successfully make the trip, you shall pay me five hundred pounds. If I fail, so shall I give the same to you."
"Preposterous," said his friends. "A horse can barely run one hundred miles a day in a single burst, and to go from London to Berlin alone without the detour to Paris is already seven hundred miles. We will not take you up on this insulting bet!" For his friends felt that it would be degrading of their honour to take a bet that they had no chance of losing.
"Not only will I do it within three days," said Passepartout, "but I will keep the horse at a regular pace of thirty miles per day."
A month later, he won the bet. How did he do it?