A collection of essays of the McMurtry-Cornelius lineage of Aleister Crowley's A.'.A.'. The essays were written by J. Edward and Erica M Cornelius. Many were written in response to a student's request for information which they deemed not clearly explained in Crowley's writings. Since many students ask the same questions, J. Edward Cornelius started writing his replies in the form of essays which could later be handed out or emailed to other students who might be asking the same if not similar questions. In this light the essays run the gamut of thought from easy magickal foundational information to more intricate theories related to the Qabalistic spheres on the Tree of Life in which the student resides. It is also important to note that some of these essays were written to male students, while others were written to female students. All these essays are considered foundational stones designed to open a dialogue between a student and their teacher on often-difficult topics. This issue contains J. Edward Cornelius' essays on the Fourth and PI Degree Ordo Templi Orientis.