In 490 BCE Pheidippides ran for 36 hours straight from Athens to Sparta to seek help in defending Athens from a Persian invasion. He was hailed as a hero & his run stands enduringly as one of greatest physical accomplishments in history. Dean Karnazes honours this achievement & his own Greek heritage by attempting this ancient journey in modern times. His account of running the gruelling Spartathlon, fuelled only by the figs, olives & meats available to Pheidippides, will captivate even the most sedentary readers.