A book, written by William Morgan in 1818, that describes the author's experiences with Freemasonry, including the secret handshakes, rituals, warnings, and rites he was taught. The book contains photographs of handshakes and warnings; it also details a series of code exchanges to confirm that a given handshake or warning is valid. The first three levels of Freemasonry and each's obligations are described. Morgan himself was a Mason but he was allegedly killed because of this book, which eventually created a groundswell for the Anti-Masonic party.