Zevriel pads back into the singers’ chamber. “North room’s a dead end,” he reports in his clipped, practical tone. “Whole place filled with ruined trophies— bear, chimera, things I couldn’t name. Three corpse-lookin’ hunters hiding in the wreckage. Didn’t raise a fuss; they never saw me. No other door, so not worth the steel or the trouble.”

He jerks a thumb westward—toward the corridor behind the fallen crustacean. “I’ll scout the passage north of that brute next. If anyone needs breath, pray fast and follow quiet.”

Blade loose in his hand, he slips off again toward the wide hall beyond the slain horror, hugging shadow as he moves. (Stealth 13, Perception 21)

This time, the corridor chosen by Zevriel winds a bit north, a bit west; but eventually it also leads into a room.

This room used to have a reinforced metal door, but it has been shattered, so access is now free. The room measures 10' by 20', and the only 5'-wide entrance opens into the south wall, 5' from the west wall.

Inside are several chests, which have been broken or opened.

Among the chests wanders a creature of vaguely humanoid shape, but with four large tentacles for legs, and with slimy, translucent skin and warped arms resembling those of deep-sea oddities. The creature, however, must be more vigilant than the previous predators, for it almost immediately notices the newcomer spying on it—and in reaction, tries to lunge at him!

Time to roll for initiative...

Four Tentacles: 12

Mival: 17
Khelbluen: 23
Rocksaucers: 5
Paqen: 8
Elias: 11

Zevriel 15

Returning back to form.  Initiative 1+1=2

Tarysaa Init: 23

Round 1

Seeing Zevriel stiffen, Mival senses something is wrong; he rushes forward, spots the monster, and, stepping on broken chests, stands beside it, preparing to face it.

Now Tarysaa, Zevriel, and Khelbluen are up!

Combat Stats (those interested can peek):

Zevriel slips through the shattered doorway, keeping his profile narrow and knees bent. Sidling left toward the east wall, he flicks a hand back to Rocksaucers in warning and says, "Best stay out of it, throw rocks if you must," then flourishes the twin-blade into a defensive whirl—steel blurring in a tight circle to ward off strikes—before snapping the lower point forward in a swift slash at the tentacled thing’s midline. 

Action: dodge
Bonus: Whirl Dex check 12 for +1AC (total 17), and attack at disadvantage hits AC 12 for 5 damage
Move: to Eastern Wall

Round 1

As Zevriel slides left toward the east wall, Four Tentacles extends a tentacle toward him [[ OOC: Attack of Opportunity ]], trying to find a gap in his guard.

Four tentacles Opportunity Attack: 21

Damage: 17 (psychic) - and Zevriel has disadvantage on Wisdom saving throws until the end of Four Tentacles' next turn.

Round 1

The tentacle is so swift and precise that our hero's steel can't deflect it, and his reflexes can't avoid it. The rubbery appendage caresses his skin, and Zevriel's mind feels like it's... exploding into flames, with excruciating pain.

Now Tarysaa and Khelbluen are up!

Combat Stats (those interested can peek):