A book on the mastery of Christian Satanism (a Gray-Side religion.) This is the twelfth book to elaborate on the topic of it. The Gray Side of Christian Satanism and its potential is presented here. As a duality it is advantageous and broader in its scope. Nothing has so fully elaborated on The Gray Side as Christian Satanism has. This book is also useful for anyone who wishes to understand and use The Gray Arts and come up with different forms of it.