Bound manuscript of Zenosius; or The Pilgrim-convert by Charles Constantine Pise (published in New York by Edward Dunigan, 1845). A book-length apologetical fiction, it tells the story of a protestant named Zenosius who, with the help of angels, visions, and wise priests, finds his way out of the Labyrinth of Sectarianism (also called the Labyrinth of Error) and makes a pilgrimage to Rome.

According to the preface, the book is "not controversial, but explanatory. Its scope is to elucidate the spirit and character of the Church."