I managed to clean entirely Dungeon:17, was not easy, as there was a location leading into a big room and in this big room there was, fully awake :
-a dragon
-a skeletal storm dragon
-a shadow dragon
-a few ugly things.
-a shapeshifter that got a few dangerous shape.
Ouch, no way i would have survived there if it was not for the 8 earth elemental i raised as a meat shield.
We managed to destroy this nest of dangerous monsters, most of the earth elementals were destroyed in the process and i could have died a lot of time if it was not for my brave meat shields.
And that's "only" Dungeon:17 , can't even imagine how i can even survive more dangerous place.
I peeked on Dungeon:18 and every stairs leading there are in the same huge open room and there are lots of monsters there, ok let's go back carefully.
I went back into Lair and took an insane risk, surrounding me with earth elemental i went into Snake Pit:1
Previously Snake Pit:1 stair was surrounded by naga warriors and an unique, Louise, i could get back into Lair without being killed because they were sleeping.
When i arrived on Snake Pit:1 the monsters were always there, seems to confirm that they never move, as it has been thousand of turns and they were fully awake, damn...
I launched mephitic cloud on me, so everyone around would fall into it, then i went back immediately to Lair, followed by Louise and a few naga.
As my health was dangerously low (seems they all resisted confusion, ignored the earth elemental around them and focused only me), i blinked with a scroll 2 times away while the battle was going on between the earth elemental, Louise and the nagas.
As i was down to 3 health, i was really happy to be alive, rested until i was back to full, then went to see what happened around the stair.
My earth elemental apparently made a good job, as nagas were dead and the rotting corpse of Louise was nearby, good i eat it to be engorged again
Adventuring in Snake Pit:1 and trying to clean it now with my earth elemental.
Had to control teleport away as an anaconda decided to ignore the elemental blows and get directly to me, hurting me badly.
level 17 kobold has a lot of problems but surprisingly is always alive, though there was a lot more time he was very close to death than usual, that's bad.