"That lady's got some balls" Cathbad grins as he climbs out of the vent and presses himself against the wall at E3. He readies his makeshift quarterstaff ready to bludgeon the first thing to emerge from the hallway. 

Round 1 Triäsa is up!!

Initiative:

Triäsa will wait within the tunnel for Daventry to lead their jailors out of the torture room.  If either any enemies discover where they're hidden she will attack using her Force Bolt, or if they follow Daventry completely out of the room this turn she would start to move foward to go after them. Otherwise she stays put where she is at. 

As Triäsa patiently waits Guard 2 rushes forward toward Daventry. Cathbad, holding his staff like a baseball bat unleashes his plan. Instead of swinging at the creature's head he swings low trying to trip the lizard.

Trip!: 10 Trip Defense!: 17

The guard barely notes Cathbad's feeble attempt and uses his action to dash toward Daventry and engage her at I2. (Triäsa and Daventry can unleash any readied actions at this point)

Dandelion stays in the shadows and slinks to G4. Her amulet glows softly as her cat eyes narrow on the guard. A bright, intense orange red flame surrounds Guard 2 as Dandelion casts Sacred Flame.

Dex Save:9 DC13 Damage: 8

Ludolf and Pardot are up!

Daventry cracks the whip twice, the first going wide as she gets used to the implement, but the second hopefully hitting true, the tip of the whip trailing ember sparks.

Attack 1: Nat 1 :(

Attack 2: 16 to hit, 9 slashing damage, plus if it is a hit, level 2 divine smite for 11 radiant damage on top

Pardot makes his way to the front of their tunnel, but stays inside of it, ready to run if needed. From there though he throws a small flame towards the nearest guard.

Attack: 19 Damage: 7

Perhaps warmed up by it's leap over Cathbad's staff the guard has no issue dodging the red-orange flames conjured by Dandelion. It's string of good fortune continues as Daventry lashes out with her whip. Surprised by the weight of the weapon she awkwardly snaps it into the nearby torture rack. Thankfully she frees it and deftly whips back at toward the guard this time the creature has no protection. The whip smacks it straight it in the face and the red-orange motes erupt from the point of impact and the creature hisses in pain. 

Pardot advances to the edge of the vent hurling his ball of fire which strikes it directly in the back, it's scales smoldering from the heat. 

Ludolf is up. Triäsa can take her ready action anytime

Combat tracker:

Map

Triäsa casts Force Bolt at Guard 2.  
(Attack: 17 Damage: 7 force) 

She moves back into cover in the vent if she can. 

Ludolf peeks out of the vent and uses the eldritch powers of his mind to drive a spike of psychic energy into the mind of the guard attacking Daventry, then using his mind over matter to push him into the torture device in the corner of the chamber.

Move to C5
Cast Mind Sliver on Guard 2, Int save 16 or 7 psychic damage and - 1 to next save 
Then Telekinetic shove on Guard 2, Str save 16 or be pushed into J1, possibly with some adverse effect as he is pushed into an iron maiden or something ;-)

Int Save: 15 Str Save: 19

Triäsa bolt of force rattles the serpent's bones. Blood is pouring from the creature's ears as she stays concealed in the steam vent. 

Guard 2 rushes forward as the chaos breaks out desperate to subdue the escapees. He swings his dagger at Cathbad who stands just inside the door. He follows that strike with a bite attack. 

Dagger: 17 Damage: 5 + DC 13 Con Save on hit 4 (Half damage on save)

Save:  11

Bite: 12 Damage: 9 + DC 13 Con Save on hit 2 (Half damage on save)

Save:  17

From down the west hallway you hear a loud, eager yell and a heavy body slam against the door, "Having trouble? Give me one moment and I shall rip the heads from their bodies!"

Str Check: 24

(Poor Cathbad....) Crit damage: 1 Chair Damage to Guard 2

Guard one moved forward to attack Cathbad, Not Guard 2. Thats a typo. I won't change to risk the flag of doom.

Guard 2 grabs his head and screams in pain and then in surprise as he is launched backwards into the chair. Stumbling a bit he is impaled slightly on the spikes.

Cathbad swings his "quarterstaff" twice with two hands at Guard 1. 

Attack: 17 Damage: 8

Attack: 9 Damage: 5

Cathbad's first hits squarely the second misses. 

Triäsa and Daventry are up!

Map:

Combat Tracker:

Daventry twirls the whip around her head, bringing it down to bear once again on the guard, streaming more red-orange motes.

Attack 1: 16 to hit, 9 slashing damage, and another smite for 11 radiant

Attack 2: 13 to hit, 8 damage

Determinant: if these attacks kill the guard she's engaged with, move to F2 to engage the other guard and be ready for a sentinel attack

Confident in your new weapon you whip it, whip it real good. Guard 2 Falls to the ground, very dead. You advance forward toward the remaining guard who is starting to question it's choices.

With Guard 2 going down we can move initiative along!

Dandelion gracefully charges to E1. Balancing on the torture chair she swings her claws and bites at the guard with all the ferocity of an undead cat.

Claw: 22 Damage: 3 + 11 necrotic

Bite: 17 Damage: 4 + 5 necrotic

Ludolf, Pardot and Triäsa are up

Combat Tracker:

Pardot moves out, but keeps his distance and throws another flame towards the remaining guard.

Attack: 15 Damage: 9

With one guard down and Daventry moving towards the other, Triäsa moves out of the passage and as far east as she can.  She again casts Force Bolt at the guard.
(Spell Attack: 21 Damage: 14)

Ludolf peeks out of the vent and uses the eldritch powers of his mind to drive a spike of psychic energy into the mind of the last guard, then using his mind over matter to push him into the torture device in the corner of the chamber.

Move to E4
Cast Mind Sliver on Guard 1, Int save 16 or 5 psychic damage and - 2 to next save 
Then Telekinetic shove on Guard 1, Str save 16 or be pushed into E1, possibly with some adverse effect.

Int Save: 11 Str Save: 14

Pardot's flame crashes harmessly into the wall, however, Triäsa's bolt of force finds the mark. The creature looks to be in significant pain.

Chair Damage: 4

The serpent guard is launched backwards into the chair, it's sharp edges lightly cutting into it's scales. It stands up and hisses at Dandelion. "Foul creature. I should have known your kind would find this. Place. It is no matter the Great One can not be stopped. Yig's will arrive soon and he will devour this world."

It then slashes at the cat with it claws and fangs.

Dagger: 12 Damage: 7 + DC 13 Con Save on hit 7 (Half damage on save)

Save:  18

Bite: 9 Damage: 5 + DC 13 Con Save on hit 7 (Half damage on save)

Save:  14