The series first appeared in Arthur's Lost Library Book. At the Elwood City Public Library, a new copy of the Scare-Your-Pants-Off Club book comes out and Arthur is the first to check it out, but he loses it. In a later Season 1 episode titled The Scare-Your-Pants-Off Club all of the kids are waiting in line at the library for the release of the new book, but they all get disappointed because P.A.W.S., or Parents Against Weird Stories got the books banned from libraries. At the end of the episode, it is revealed who writes the books.