In this episode, Lucas and Luna follow the arc of the Indian Ocean's medieval trade network, focusing on the direct maritime link between the Abbasid Caliphate and Tang Dynasty China. They explore the bustling port of Siraf, the famous Belitung shipwreck with its cargo of Changsha bowls, and the remarkable journey of Du Huan, a Chinese soldier who ended up in Baghdad and wrote about what he saw. Along the way, they touch on the Taiping S, an eighth-century Chinese guide to the maritime route, and how the monsoon winds, the rise of the Silla kingdom, and the shifting politics of the era all played their part in this exchange. The conversation also considers the quieter presence of the Radanite merchants and the role of the Cairo Geniza as a record of these connections. With a focus on the human stories behind the cargoes, the episode reveals how silk, paper, and ideas traveled across the sea, and how the memory of this trade influenced later European explorers like Vasco da Gama.