Lord Nelson, his wife and Jade, the ex-favorite of Istanbul Sultan, whose couple share favors, have undertaken to explore Africa. On his river, their boat is savagely attacked by natives. Fascinated by the black pearl she wears in her ear as their goddess, the assailants take Jade. The beginning of a second cycle of enchanting adventures around the world for the sulphurous Jade who became the mistress of Lord and Lady Nelson.