Telos, one of the Cybermen Tomb Worlds.

Tomb worlds were the thousands ofplanets across thegalaxy that heldCyber-Tombs. The civilisations that developed on these worlds were actually "raw material" waiting to be processed throughcyber-conversion. It was intended that every world would receive agalactic dehibernation signal that would awaken everyCyberman in the galaxy from their long sleep. (AUDIO:Kingdom of Silver)

Telos (TV:The Tomb of the Cybermen) was theMaster Hibernation Unit. (AUDIO:Conversion,Telos) Other worlds includedCantus, (AUDIO:The Crystal of Cantus)Tasak (AUDIO:Kingdom of Silver) and the planet ofHedgewick's World of Wonders. (TV:Nightmare in Silver)