This investigation approaches the invisible figure corresponding to the secretary of the Bishop, a crucial member of the so called "family" of the prelate, considered as part of the intimate circle and a trustworthy figure. The secretary was the person in charge of keeping the Bishop's "secrets", which include the most important documents of the dioceses. Therefore, his role was fundamental and was regulated by the requirements of the Trent. The secretary performed several times as a notary or signed the Bishop's letters, but nothing has been said about the editing he carried out of important ecclesiastical texts that the Bishop had only just drafted. Here are presented at least two examples that clearly show the manifestation of the secretary's hand. More than a name, the secretary will be a text function through which this character will add, edit and garnish the sayings of the Bishop in order to disappear behind his image, almost without any trace.