My first thought was to mention them as a
digression in an article about cult leaders, but I decided that they should
have a post of their own as they are just a by-product of the cult
investigation and belong under the label of conspiracy humour.
Tibetan tunnellers appear in Good Omens by Terry
Pratchett and Neil Gaiman.
These two geniuses have brought together two
very different topics - a conspiracy theory and a radio programme - and merged
them into something that is greater than the sum of the parts.
The conspiracy theory
There are people who believe that when
Atlantis was destroyed, some of the survivors went to Egypt as teachers and
were responsible for the building of the pyramids.
Others say that some survivors of the great flood went to Tibet, where they became secret masters. There are all kinds of bizarre and sensational conspiracy theories about this. For example, world events are secretly controlled by Tibetan monks who are black magicians and live in underground cities. One day they will emerge from their secret worldwide network of underground tunnels, take over everything and enslave us all.