Well, this is a cliché, and probably a groaner. However, it’s been on my tbr list for most of my lifetime, so if not by now, when?
Plus, it does sound like fun. Therefore, I nominate
Around the World in Eighty Days ,by Jules Verne. Depending on the translation, it’s approximately 130 pages.
From Wikipedia:
“ The story starts in London on Wednesday, 2 October 1872.
Phileas Fogg is a rich British gentleman living in solitude. Despite his wealth, Fogg lives a modest life with habits carried out with mathematical precision. Very little can be said about his social life other than that he is a member of the Reform Club, where he spends much of every day. Having dismissed his former valet, James Forster, for bringing him shaving water at 84 °F (29 °C) instead of 86 °F (30 °C), Fogg hires Frenchman Jean Passepartout as a replacement.
At the Reform Club, Fogg gets involved in an argument over an article in The Daily Telegraph stating that with the opening of a new railway section in India, it is now possible to travel around the world in 80 days. He accepts a wager for £20,000, half of his total fortune, from his fellow club members to complete such a journey within this time period. With Passepartout accompanying him, Fogg departs from London by train at 8:45 p.m. on 2 October; in order to win the wager, he must return to the club by this same time on 21 December, 80 days later. They take the remaining £20,000 of Fogg's fortune with them to cover expenses during the journey.”
It’s in the public domain, and available via overdrive.