"Κύρου Ανάβασις Τόμος 2" by Xenophon is a historical account composed around 370 BC. This volume continues the harrowing story of the Ten Thousand, Greek mercenaries stranded deep in Persia after their employer Cyrus the Younger dies in battle. Led by Xenophon, these soldiers must fight their way north through hostile territory, treacherous mountain passes, and foodless deserts toward the Black Sea. Abandoned without supplies and hunted by the Persian King's army, this "marching republic" faces impossible odds in one of history's greatest survival stories.
Wikipedia page about this book: en.wikipedia.org/wiki/Anabasis_(Xenophon))