The adventurers visit the Derro village, temporarily putting their weapons in storage.
They speak to the village leader, the overseer and the mystic learning about the village and the water problem.
They examine the lake and see three abolyth an their thralls. Rasprax senses an other room behind the east wall with "something big" in it.
A wall is built separating a usable meadow for the Rothé from the lake. A bucket and pulley system are made to retrieve water.
Short rest.
The adventurers break open the central passage and enter the catacombs.
They find the golem trap and activate it. First thing they do is plugging the spouts.
Big fight -> they win, but 1 person down and 2 on < 10 hp.
They open the doors by pressing all plates.
Actions:
The dissapearance of Bettle Berch (communicated by Ubar Bashal) - 2 days missing
When the adventurers come back from the catacombs they find out from the derro that the water tastes foul (but is not poisonous if tested).
The Derro have been drinking mushroom water (rationed) the last month.
When talking to aboleth they know the adventurer's desires.
Also they're very smart and remember having seen all tactics numerous times.
They know all spells (will try to control the caster and make them drop water breathing etc.).