The Hidden thread is a journey of revelation about the relationship between Soviet Russia and South Africa, hidden for most of its length. The story is told with insight and depth by Irina Filatova and Apollon Davidson, who have had a decades long association researching and writing on Russian and South African politics and history. This insightful work follows the often surprising twists and turns of the history of South Africa's relationship with Russia and its people which started in the eighteenth century and is still very much alive today.