Since the Second Vatican Council (1962-5), the Catholic Church has formally declared the possibility of salvation for atheists: 'those who, without fault, have not yet arrived at an express recognition of God' (Lumen Gentium 16). However, in the very same document, the Council also reiterates the traditional doctrine of the necessity of faith, baptism, and the mediation of Church in order for someone to be saved (Lumen Gentium 14). This monograph explores how these two seemingly contradictory claims may satisfactorily be reconciled. Specifically, it asks - and ultimately answers - the...