Avyon, Avalon, and Maldek were three planets in our universe that were destroyed during a conflict between the Reptilians and Humanoids. Many souls on Earth today were involved in these catastrophes, leaving soul scars. The concern among the Ascended Masters is that, if Earth is destroyed in the 21st century, many of the involved souls will devolve in consciousness and likely, not recover.
What are Avyon, Avalon, and Maldek?
See Book Series-A Journey to the New Earth.