The Xerons where the people of Xeros, a planet that was conquered by the Morok Empire who chose it as the site for their Space Museum. All Xeron adults were killed by the Moroks, and so only adolescent Xerons remained. Until The Doctor and his TARDIS team arrived on Xeros, the Xerons were sold into slavery by the Moroks when they came of age.

Podcast C015 The Space Museum > > > > > >

The Doctor, Barbara, Ian and not-short-for-Victoria unfreeze on Xeros, are about to be frozen again, and then help some kids kill lots of grownups.