The Freddie Adventures are based on the author's own experiences, and her work with children and adults in the field of death and dying, healing and spirituality. The Door to the Secret City was originally published in 1984 by Stillpoint Publishing, where it was successfully test marketed in schools and used by many in the counseling field. This first release has now been updated and is joined by 5 new adventures in what is now known as the Freddie Brenner Mystical Adventure Series.