In this letter sent from "the Bastille", the prison where the Kings of France imprisoned
celebrated persons who were distinguished by their call for freedom of conscience in opposition
to the absolutist rulings, the noted Rosicrucian and historian of esoteric and initiatory
movements of Europe prior to the XVIII century, the Abbot Nicolás Lenglet du Fresnoy (1674-1755), gives
instructions to a friend regarding protecting their books and their private library and so that he may
assist in the agreed upon commitments before being imprisoned.
This original and authentic document is an example of a Rosicrucian, pursued by the
dictatorial and sectarian powers of old Europe, concerned for the conservation of the cultural
and traditional work.