Propylon indices allow the Nerevarine to teleport between the propylon chambers at all Dunmer Strongholds except Kogoruhn. In order to teleport to any one stronghold, the Nerevarine must possess the corresponding propylon index. There are ten propylon indices that can be found scattered throughout Vvardenfell. With the Master Index plug-in installed, an eleventh propylon index is added that links all propylon chambers to the Mages Guild hall in Caldera.