"Millennium" is one of the most famous books by American medium Lyssa Royal. The book brings messages from the extraterrestrial group "The Community" (a Pleiadian-Sirian alliance) and the being Ra.
Richard Firestone, Allen West, Simon Warwick-Smith
The book is the most readable and complete overview of the evidence that human civilization has already been nearly wiped out of the universe once – and that such cycles may repeat themselves every few tens of thousands of years.