This labyrinth has a MAP and it is mine. Having that makes up for the pain staking effort I went through in the first room, slaying every single jelly blob only to have nothing appear.
Deciding that the guardian of this temple must be a trickster guardian, capriciously deicing when and where to plant the secrets, I persevered and in room two there was in fact a hidden key! The barriers which had been a hinderance now reveal themselves to be a perfect place to hide from the slinking foe.
I do not bother with the armored guardians, but run ahead, checking in the previous day’s key room if a new treasure will appear if I clean it of vermin again. Nothing new appears. But I have a key! I use it on the door to the east and discover the map.
While attempting to clean the room completely, I die. I am unsure if I will go back.