For a while I have been researching the Planet X idea and its many variants, from the theories of Sitchin to Zetatalk, Barry Warmkessel, Richard Muller, and Velikovsky. And of course the version explored in the Cassiopaean transmissions which are close to Richard Muller’s theory of a dark star companion that swings by every 26-27 million years. The twist is that via its highly elliptical orbit, it punches through the Oort cloud and sends a trailing cluster of comets into the solar system which then establish a 3600 year orbital cycle, periodically pelting the inner solar system.
Here is a PDF written in 2003 that explores the plausibility of this scenario.
