Protestants who sincerely believe that they are in the right church CAN be saved provided they die without UNREPENTED mortal sin.

If these persons are not baptized, it is possible for them to have baptism of desire, that is, if these persons do all they know God expects of them, we say they have baptism of desire. This means they WOULD desire baptism if they knew its importance since they do all else that God has required as far as they know. These persons belong to what is called "the Soul of the Church."