Theras and His Town by Caroline Dale Snedeker

Theras and His Town is about the struggle of an Athenian boy called Theras whose father was killed in battle and who was parted from his family and sent to Sparta, a nearby city-state in Ancient Greece. He goes to great lengths to return home, and on the way, meets Abas, a perioikoi boy. Eventually, Theras and Abas make it back to Athens after months of traveling. When he returns, Theras discovers that his father is alive and well, and had only been imprisoned and released, not killed. This book is not only about Ancient Greece, but also about family, and helping those in need.