The historian then will not be surprised to find that by far the larger number of Fatal Books deal with these subjects of Theology and Religion, and many of them belong to the stormy period of the Reformation. They met with severe critics in the merciless Inquisition, and sad was the fate of a luckless author who found himself opposed to the opinions of that dread tribunal. There was no appeal from its decisions, and if a taint of heresy, or of what it was pleased to call heresy, was detected in any book, the doom of its author was sealed, and the ingenuity of the age was well-nigh exhausted in devising methods for administering the largest amount of torture before death ended his woes. _Tantum religio potuit suadere malorum._ Liberty of conscience was a thing unknown in the sixteenth and seventeenth centuries; and while we prize that liberty as a priceless possession, we can but admire the constancy and courage of those who lived in less happy days. We are not concerned now in condemning or defending their opinions or their beliefs, but we may at least praise their boldness and mourn their fate. The first author we record whose works proved fatal to him was Michael Molinos, a Spanish theologian born in 1627, a pious and devout man who resided at Rome and acted as confessor. He published in 1675 _The Spiritual Manual_, which was translated from Italian into Latin, and together with a treatise on _The Daily Communion_ was printed with this title: _A Spiritual Manual, releasing the soul and leading it along the interior way to the acquiring the perfection of contemplation and the rich treasure of internal peace_. In the preface Molinos writes: "Mystical theology is not a science of the imagination, but of feelings; we do not understand it by study, but we receive it from heaven. Therefore in this little work I have received far greater assistance from the infinite goodness of God, who has deigned to inspire me, than from the thoughts which the reading of books has suggested to me." The object of the work is to teach that the pious mind must possess quietude in order to attain to any spiritual progress, and that for this purpose it must be abstracted from visible objects and thus rendered susceptible of heavenly influence. This work received the approval of the Archbishop of the kingdom of Calabria, and many other theologians of the Church. It won for its author the favour of Cardinal Estraeus and also of Pope Innocent XI. It was examined by the Inquisition at the instigation of the Jesuits, and passed that trying ordeal unscathed. But the book raised up many powerful adversaries against its author, who did not scruple to charge Molinos with Judaism, Mohammedanism, and many other "isms," but without any avail, until at length they approached the confessor of the King of Naples, and obtained an order addressed to Cardinal Estraeus for the further examination of the book. The Cardinal preferred the favour of the king to his private friendship.