Travels With My Aunt by Graham Greene

This novel follows the adventures of Henry Pulling, a retired bank manager, who leads a quiet life tending to his dahlias until he reunites with his eccentric Aunt Augusta at his mother's funeral. Aunt Augusta, a woman with a colorful past and an insatiable thirst for adventure, draws Henry into a series of unexpected journeys that take them from England to Paris, Istanbul, and South America. Along the way, Henry is introduced to a world of smuggling, intrigue, and characters who challenge his previously staid existence. Through these experiences, Henry discovers a zest for life he never knew he possessed, as he learns that adventure and excitement can be found at any age. The 5417th greatest book of all time