Procopius - History of the Wars, Books V. and VI.

Procopius, a prominent historian of Eastern Rome, provides invaluable insights into the reign of Emperor Justinian through his extensive writings. His major works include an eight-book account of the Gothic Wars, a detailed examination of Justinian's public infrastructure, and the controversial "Secret History," which reveals scandals omitted from official records. As the last significant ancient historian, Procopius's narratives are crucial for understanding this transformative period in Roman history.