Information about the new book can be found on this link
https://riseandpress.com/titoli/shasta-pamela-susan-courson
The google translate of the description reads:
Shasta is not a casual title. There are many characteristics in common between the mountain and Pam, the protagonist. She, the better half of Jim Morrison, becomes the muse of a meta-historical tale where Barbara Juliet, debut Milanese author, takes us on a journey: a reconstruction steeped in details, enriched by unpublished testimonies resulting from the painstaking work of the real story researcher on the Rock. Five years of studies and travels that go beyond the known news, beyond any "Club 27" and insinuates itself into a legend like the famous Jim Morrison. The other half of Jim, Pamela: companion in life and adventures that deserves to be told. This book is not a biography, not a myth about Rock but a narration of the events by those who lived them. Mount Shasta, the beginning of a journey whose stages are tormented and full of magic at the same time. A vivid experience of what Pam and Jim have been. A new key to interpreting what was the anguished end of this intense journey on which, after decades, we try to shed new light.