Add to ORKGTarzan and the Lost Empire is the twelfth in the series relating the tales of Tarzan, Lord Greystoke. It was first published as a serial in Blue Book Magazine from October 1928 through February 1929. The first book edition was published in September 1929. Tarzan is asked to help find Erich von Harben, a young German archaeologist and ancient language linguist. He disappeared while investigating the legend of the lost tribe of the Wiramwazi Mountains. In his search for Erich, Tarzan runs across a lost remnant of the Roman Empire hidden in the mountains of Africa. Erich has been captured by the soldiers of Castrum Mare, one of two rival cities, the other being Castra Sanguinarius. Tarzan goes to Sanguinarius but makes an enemy of the ruler th...