Ecumenical principles and prospects in the light of the past two decades of Anglican-Roman Catholic dialogue is the theme of this new book by one of Britain's foremost theologians. In marry ways the gap between Canterbury and Rome seems wider now than when it all began. Relations between the two Churches are in a state of crisis. At such a time it is vital not to indulge in mutual accusations of shifting goal-posts but to see what can be done together. The road to unity is harder to map than was imagined in the post-Vatican II ecumenical optimism. And yet the ecumenical commitment remains: there is no turning back.