""Secreta Monita Societatis Jesu: Secret Instructions Of The Jesuits, To Which Is Prefixed An Historical Essay"" is a book written by William M'Gavin. The book is a collection of secret instructions allegedly given to members of the Society of Jesus, also known as the Jesuits, a Catholic religious order. The instructions are said to have been written in the 17th century and were meant to guide Jesuits in their mission to spread the Catholic faith...