involved in compiling a hymnal with 40 hymns of his own work while editor of the Millennial Star. In 1835, Pratt published a pamphlet about his missionary efforts in Mentor, Ohio. This work, entitled "A Short Account of a Shameful Outrage", was the first pamphlet ever published by a Mormon. One of Pratt's most influential works was a book entitled A Voice of Warning (1837), first published in New York City. Givens and Grow say the book was "a work that served the church as its most powerful proselytizing tool—after the Book of Mormon—for more than a century." Pratt made substantial revisions between the first and second editions after Joseph Smith voiced some reservations about it. The second edition of A Voice of Warning was published in 1839. In 1837, Pratt, along with John Goodson, published the second edition of the Book of Mormon. It included Pratt's testimony, along with that of the three and eight witnesses to the golden plates. Near the end of 1837, Pratt published Mormonism Unveiled: Zion's Watchman Unmasked, which is the earliest surviving response by a Mormon to an anti-Mormon writer. Pratt also wrote one of the earliest Mormon works of fiction. His "A Dialogue between Joseph Smith and the Devil", was published on January 1, 1844, in the New York Herald. It was a religious treatise in fictional form. Pratt's most well-known theological work was A Key to Science of Theology, which was published in 1855. Other works by Pratt included Late Persecutions, Millennium and Other Poems, at least ten tracts published while he served as editor of the Millennial Star, and "Proclamation to the People of the Coasts and Islands of the Pacific", written by Pratt in the summer of 1851 in San Francisco, California, and published by W. C. Wandell in Sydney, Australia. Pratt's Visions and Poetry also serve as the text for many songs now found in the Latter Day Saint Hymnal. Pratt's writings also corroborate many events and revelations which are found in a book of Latter Day Saint scripture known as the Doctrine and Covenants. In total, Pratt is known to have written 31 published works, not including his posthumous autobiography. Journey to Utah After the death of Joseph Smith, Pratt and his family were among the Latter Day Saints who emigrated to what would become Utah Territory. They continued as members of LDS Church, under the direction of