(Vanizi Stealth: 6)

Katarina stealth: 16
Davis Stealth: 8
Vanizi Stealth: 6
Haly stealth: 6 (rolled for her in the game log)

Unfortunately, the sound of group's metal armor on the stone floor echoes down the corridor, waking the snoozing cultists. They are just beginning to get up to investigate the sound when you reach the entrance to these connected chambers.

(Roll initiative and post your first action - the party gets a free round before the five cultists respond =)
Cultist init: 17

Davis is going to assume the cultists are evil, perhaps even connected to the murder of his wife, and enact justice.

He will move up and attack the one near the door:

Attack Warhammer: 20 bludgeoning damage: 16

After the attack, he will move into the doorway to make a choke point. He is OK with an opportunity attack.

Initiative: 8

Map updated.

Katarina Initiative: 17

Katarina is going to go berserk on the nearest cultist, throwing caution to the wind to amputate his/her head with a sword while unleashing wild magic!

Wild Surge: 8

Longsword vs. Cultist
Attack: 22 (advantage because she uses Reckless Attack); Damage: 8 (6 + 2 RAGE bonus damage) magical slashing.

A beam of radiant light also flashes from her chest (Wild Surge effect); the cultist she is trying to hack apart must make a DC 13 Con save or take 4 radiant damage and be blinded until the start of Katarina's next turn.

(Vanizi Initiative: 1) 

Vanizi sees the cultists starting to get up and focuses in on the cultist (red) directly ahead.  She first casts Hex the follows with Eldritch Blast. 
(Spell Attack: 22, Damage: 10 force + 1 necrotic; Disadvantage to Dex Checks from Hex) 

After making her attack she will stay put where she is at back in the passageway. 

Combat round 1:

• Katarina attacks in a feline rage, slashing the red cultist as he tries to stand, then a blast of radiant light erupts from the barbarian and (possibly) fries the man! (Red DC13 Con: 5 - if fail, the cultist drops to the ground!)
• Davis rolls in behind Katarine and heads for the other cultist (blue) in this section, savagely crushing the woman's chest with his warhammer. The crunch of bones and last gasp of a dying person follow in rapid succession. (blue down!)
• The remaining Cultists rouse themselves from sleep, grabbing scimitars after getting out of their beds.
• Vanizi moves into the room, staying behind Davis and focusing her evil eye on the next cultist (yellow). The force of the eldritch blast nkocks the man back across the makeshift bed and slams him into the wall, never to rise again. (3rd one-shot of the round!)
• Haly

Round 2:

• Katarina
• Davis
• Cultists

Initiative: 21

Halyqwyn stands back a moment while her friends take care of cultists left and right!  She is shocked at the precision, but also pleased after the difficulty of the undead.  She follows them into the room and pointing at a remaining cultist, the bells start to ring for the man, needing a WIS save of 14 or 6 necrotic damage.

(Assuming she'll be up again with the 21 initiative...)

Haly sends the bells again, towards the same one, WIS save of 14 or another 6 necrotic damage.

• Haly evokes a death knoll for one of the cultists (Green DC14 Wis: 14)

Round 2:

• Haly keeps ringing on the green cultist's sense of mortality. (Green DC14 Wis: 17)
• Katarina
• Davis
• Cultists

After obliterating one cultist, Katarina hisses and swings her blade at the next one that catches her eye. She will attack recklessly, paying little heed to danger as she tries to decapitate the vile worshiper of Vecna...

Longsword vs. Cultist
Attack: 16; Damage: 11 (9 + 2 RAGE bonus damage) magical slashing

The cultist must make a DC 13 Con save or be blinded and take 4 radiant damage

Davis will move to the green cultist, or purple if green has fallen.

Attack Warhammer: 26 bludgeoning damage: 11

The party, although not very stealthy, is decidedly deadly! The cultists are cut down before they even know what happened...

Searching the room, (DC12 Investigation) you find: 

 There is a passage at the southern end of the chambers leading about 25' east and then slanting SE. The sound of murmured chanting echoes down the passage...

(Vanizi Investigation: 5)

Vanizi does not really see anything in the room, and takes a few steps towards the passage out.  She nods her head in the direction chanting they can hear. "More cultists?" she whispers. "Should try to keep quiet." 

Davis once again seems lost in thought, someplace else, barely noticing his surroundings, until it is time to leave.

Investigation: 2 (natural 1)

Yeah... Katarina has no idea what's going on either. She's just here to stab things.

Investigation: 7

Investigation: 21 (crit)

Pulling out three gaudy jeweled rings and a hat, Haly holds them out.  "There seems to be something special about this hat, though I don't know what (I'm assuming?).  But yes, lets get moving and find out what that murmuring is about."

She lets anyone who is interested take some or all of the loot, whatever is left, she'll pack away till a later time.

Vanizi is willing to let Halyqwyn keep the items. "Perhaps divide the spoils later when we get out of here," she comments. She's ready to head down the path that least east then southeast.

Davis snaps out of whatever thoughts he was having, "OK, onward then?" and will continue onward.

Cacophonous whispers echo through this expansive cave (60'x55' and roughly circular with another passage to the west - map). An imposing human cultist in a sweeping gray robe (like the one Delvin was wearing) stands against the north wall, chanting. His oily hair is slicked back, and his skin is gaunt and gray.

In the center of the cavern, carved into the floor before him is a runic circle that pulses with sickly green light. Two cultists—one human, one half-elf—stand inside the circle, heads thrown back and mouths agape. Their leader commands, “Now! Release your secrets unto me! Let the truths hidden in your soul come forth and become stronger!” As if in response, the cultists’ silhouettes warp into two lanky shadowy entities, like shadows with three-dimensional form!

"What are those shadows?" Vanizi whispers. "I think we should try and stop the one there to the north first. Maybe that will stop whatever is happening."