 Ady's "Candle in the Dark" contains the first record of the nursery rhyme Mathew, Mark, Luke, and John.His book also is one of the earliest references to the origin of the word hocus pocus as a Latin-like phrase used by a conjurer to distract his audience from his sleight of hand, which also relates to where the word hoax comes from.See the articles Hocus Pocus (magic) and hoax on Wikipedia for more information, as well as the etymologies for hoax and hocus pocus.