"Κύρου Ανάβασις Τόμος 1" by Xenophon is an ancient Greek historical work composed around 370 BC. It recounts the expedition of ten thousand Greek mercenaries hired by Cyrus the Younger to seize Persia's throne from his brother in 401 BC. After Cyrus dies in battle and their generals are treacherously killed, the Greeks find themselves stranded deep in hostile territory. Xenophon chronicles their desperate march north through deserts and mountains toward the Black Sea, fighting enemies and making life-or-death decisions as they struggle to reach safety.