Minecraft Dungeons:Rune room

Rune rooms are hidden rooms that can grant access to runes that the player can collect, they will mostly consist of a narrow rampart over a purple void that will lead to a tower with a rune symbol. There is a button nearby, if a player presses this button, it will greet him/her with the respective rune. The exception to this is Obsidian Pinnacle, which features the rune in a regular room instead. All of the runes collected in order spell “Bovine Path.”

Mobs
No mobs of any kind ever spawn in these rooms except if Night mode is active.

ja:MCD:Rune room