<P>This sequel to King Solomon's Mines is filled with the spirit of adventure. <P>Three men and their guide trek into remote Africa in search of a lost white race. Their perilous journey takes them to Zu-Vendis a kingdom ruled by the beautiful twin sisters Nyleptha and Sorais. Thrilled by rumors of a lost civilization three Englishmen decide to travel to the heart of Africa with their Zulu guide where they meet with continual peril: an attack by a cruel warrior tribe the scorch of underground volcanic fires and an encounter with a huge species of ferocious black crab. Exhausted and depleted of supplies the men at last arrive at a mysterious city in the highlands of the interior. <P>The people called the Zu-Vendi enjoy a civilization suggesting Egyptian origin which includes a sun-worshiping priesthood. The travelers immediately fall into disfavor with the priests by shooting some sacred hippopotami. <P>More problems arise when Sir Henry falls in love with one of the twin queens who rule the land. Her devious sister becomes jealous and civil war erupts.