In the last century the Fellowship of St Alban and St Sergius gave to Russian Orthodoxy an opportunity, in a sustained encounter with the Christian West, to speak with a voice never heard as powerfully before in the western world, and from the date of its foundation in 1928, the Journal of the Fellowship of St Alban and St Sergius, later Sobornost, sought to strike a good balance between Western and Eastern contributions to Christian thought. It provided an ecumenical encounter principally between the exiled Orthodox intelligentsia of the Russian diaspora and the Catholic party of the Church of England, but also on occasion with Presbyterians, Methodists and other Protestants. In this fascinating account of the work and mission of Sobornost, Aidan Nichols shows how this was to change significantly as the Western tradition began to be seen as taking too many wrong turnings to be a reliable guide for Christian theology at large, and he divides this study into two parts: the first forty years of the journal as a time of encounter more or less on equal terms, and the last fifty years where the meeting of East and West would be increasingly on the East's terms-and, in another striking development, this meant the Greek East rather than the Russian. This process of transformation was only gradual, but by the start of the twenty-first century, Sobornost was fast becoming, especially through its mediation of modern Greek philosophy, theology and spirituality, as well as the more traditional discipline of Byzantine studies, a largely monophonic voice for Orthodoxy in the West. This was a far cry from its origins, even if that voice was also much needed in an often disoriented English, European and North American Christianity. Throughout its history, Sobornost has been invaluable for Western readers in the provision of information about the Eastern Churches, and especially the Byzantine or Chalcedonian Orthodox-always the more important part of both Fellowship and journal. A definitive role for the present and for the future, as they both celebrate their 90th anniversary.