Kalak launches a small bout of flame to the moving statue.

Attack: 16 Damage: 11

Ven approaches the gigantic statue but careful to stay out of reach, and starts to sing high pitch notes , trying to find the resonant frequency of the marble.
WIS DC15 or 12 psychic and reaction=flee 

Kandalou will just attack the statue twice.

-> Longsword, +1 vs. Statue: 1 - Attack: 22 Damage: 7

-> Longsword, +1 vs. Statue: 3 - Attack: 10 Damage: 12

Scratch that. Kandalou will disengage from the statue and attempt to regroup with his pals.

DM's Screen:

Kalak sends a smaller mote of fire towards the statue, but his aim is a little off. The flying flame hits the tunnel's ceiling, never quite making it into the room.

Quadere tells the group to keep their distance and then repeats her spell from a moment ago. It is just as effective. (Marble Statue takes 13 radiant damage.)

DM's Screen:

Vishnu moves to the mouth of the northern tunnel {BP-20} and uses a combination of the wall and the shadow created by Quadere's body to hide herself momentarily. (The cleric's shield has light cast on it and is being held in front of her, I assume.)

From there, the githzerai shoots another magic-laced arrow. She aims for a portion of the statue just above the crack she opened before, creating a new one. Like perforated paper, the cracks join, showing the cumulative damage done to the stony enemy. (Marble Statue takes 22 magical piercing damage.)

Ven takes a few steps forward and whispers some magic words towards the statue. A fist-sized portion of the back of its head crumbles as the spell is partially successful. The statue's movements are now visibly precarious, and its two black-jewel eyes are becoming loose. (Marble Statue takes 6 psychic damage.)

Edit: The statue takes a couple of steps in place before the cracks and the crumbling catch up to it. It falls apart in many pieces right in front of Kandalou, who has to raise his arms to protect himself from falling debris. (Marble Statue is DEFEATED.)

As the rrakkma observes the statue's demise, they see that the apparition remains. It becomes obvious that the ghost was hiding within the marble statues. Moreover, the statue's black-jewel eyes hit the ground with a loud crack. They both split apart upon landing, each releasing a humanoid shadowy shape.

(OOC: We are waiting on @MuggsHill to post a turn for Shai, and for @Superbad to reconsider Kandalou's turn. There are three enemies in the oval room: the apparition and the two shadowy figures.)

Initiative order seems a little confused, but.................

Shai reacts as soon as the statue begins to collapse and the spectral form can once again be seen, dropping her crossbow and closing, using the statue as a springboard to launch a two footed kick directly at it.....

Strike 1: Attack: 22 Damage: 7

Strike 2: Attack: 14 Damage: 7

before spinning around and focussing on defense again (Ki point expended to Dodge until the start of her next turn)

"We don't know what has just been released.....they may not be an enemy.....let us finish this one first.  Quadere, any chance you can...communicate with those shadows?"  

OOC: Lerus - Whilst you have indicated them as enemies - have the shadows attacked us directly yet?

Shai is the first to react to the apparition reappearing. She drops her crossbow as she runs toward danger and delivers a double flying kick to the apparition. Her ki-infused magical strikes put an end to the ghost, who wisps away with a final message: "You'll never arrive in time..." (Apparition takes 10 magical bludgeoning damage and is DEFEATED.)

Just as Shai lands among the marble statue's rubble, Kandalou decides it is time to rejoin the rest of the party. He disengages from the dark shadow-like creatures and runs back into the tunnel {BQ-29}.

(Another post coming soon.)

One of the shadows approaches Shai calmly and slowly while the other one enters the tunnel, passing by Kandalou and reaching Ven's side. They both look curious at first, examining the monk and the bard attentively. Then, they begin to talk in a strange language, if it can even be called that. The words are nothing but whispers at first, but quickly grow into a howling babble. Kandalou has the unique displeasure of listening to them both.

-> WIS saving throw to all within proximity of the first shadow {DC 14}; Damage: 7 psychic

• Kandalou: 2
• Shai: 24

-> WIS saving throw to all within proximity of the second shadow {DC 14}; Damage: 13 psychic

• Kandalou: 10 (@Superbad: Do you want to use your d8 Barcic/Combat Inspiration on this roll?)
• Quadere: 10
• Ven: 14
• Vishnu: 20

The fighter, the monk, and the rogue get the worst of it. For a moment, not only do their heads hurt, but they find themselves unable to react. (Kandalou takes 18 psychic damage and is stunned; Shai takes 9 psychic damage and is stunned; Vishnu takes 14 psychic damage and is stunned.)

Quadere and Ven also feel a ping in their heads, but are able to resist the stunning effect. (Quadere takes 7 psychic damage; Ven takes 7 psychic damage.)

The shadow that was next to Shai then also enters the tunnel.

END OF INITIATIVE ROUND 3

FRIGHTENING APPARITION - INITIATIVE ROUND 4

• 19. Kalak (38/38) - source of Light;
• 14. Shai (57/66) - dodge, stunned, incapacitated;
• 13. Quadere (59/66) - source of Light;
• 13. Kandalou (30/94) - stunned, incapacitated, memory-drained (d4 penalty to ability checks and attacks), Bardic/Combat Inspiration (d8);
• 09. Ven (49/57) -  
• 08. Vishnu (52/66) - stunned, incapacitated;
• 05. Shadows - 
• 00. Apparition/Marble Statue -

MAP:

 

NOTES: ...

(Everyone can take their turns.)

"Shai, I think it's safe to say that anything we encounter on this plane is hostile until proven otherwise." Quadere states matter-of-factly, not really sure if she can be heard or not.  She then falls back to BS-17, firing a bolt of light (Attack: 11, Damage: 11 radiant damage) at the nearest shadow as she goes.

Keeping his distance from these new shadows, Kalak launches another mass of flame at the nearest one.

Attack: 14 Damage: 13

Kandalou would like to use his d8 Bardic Inspiration on the save! 7, just needs to be 2 or higher!

 ((Sweet))

Assuming Kandalou now gets his turn, he will attack the nearest shadow with an action surge! 

-> Longsword, +1 vs. Shadow: 4 - Attack: 25 Damage: 12

-> Longsword, +1 vs. Shadow: 3 - Attack: 29 Damage: 8

ACTION SURGE!!!!

-> Longsword, +1 vs. Shadow: 4 - Attack: 25 Damage: 6

-> Longsword, +1 vs. Shadow: 1 - Attack: 21 Damage: Unable to parse dice roll.

(I always knew [Tooltip Not Found] was the ultimate weapon.)

Ven is holding tight his rapier and attacks the closest shadow.

Rapier: 26 damage 4
Rapier Extra Attack: 25 damage 9 ... Boom Critic (+7 please)

Kalak keeps his distances and launches another fist-sized sphere of fire on the closest threat. It hits the shadow right in the face, but much like the statue, it does not seem too bothered by it. (Shadow #2 takes 9 fire damage.)

Shai wobbles in place for a few seconds before recomposing herself. (She's no longer stunned as of the end of her turn.)

Quadere tries to give the monk some advice but is too far and her words are interrupted by the strong wind. She retreats a bit and tries to hurl another sacred flame but the spell is ill-aimed.

Kandalou recovers from his momentary condition (Bardic inspiration "cures" stunned and also reduces the damage taken, so Kandalou should be at 37/94 HP.)

The fighter uses his recouped time to approach the closest shadow {BQ-28} and swipe at it four times! Unfortunately, only two strikes make contact, but the shadow clearly suffers with the magical shine of Kandalou's blade. (Shadow #1 takes 21 magical slashing damage.)

Ven retaliates against the shadow who tried speaking to him. In spite of the bard's accuracy, his mundane blade passes through the enemy just as if it was piercing air. (Shadow #2 takes 13 piercing damage.)

Vishnu looks a bit dizzy for a while but manages to catch herself before tripping. (She's no longer stunned as of the end of her turn.)

(Shadows go next.)

editing...

DM's Screen:

One of the shadows begins howling once more:

-> WIS saving throw to all within proximity of the first shadow {DC 14}; Damage: 15 psychic

• Kandalou: 3
• Shai: 23
• Ven: 15

Ven and Shai know what to expect, but still feel a bit of pain inside their skulls. (Ven takes 7 psychic damage; Shai takes 7 psychic damage.)

Kandalou is caught in the enchanted babble fully. (Kandalou takes 15 psychic damage and is stunned.)

The second shadow recognizes the opportunity to attack a wobbly Kandalou and decides to risk showing its back to the bard. (Ven can perform an opportunity attack against Shadow #2.)

-> Maddening Touch vs. Kandalou: Attack: 22 Damage: 18 psychic damage.

Kandalou's headache gets exponentially worst. Meanwhile, the first shadow circumvents Ven and keeps moving west. (Kandalou takes 18 psychic damage.)

END OF INITIATIVE ROUND 4

FRIGHTENING APPARITION - INITIATIVE ROUND 5

• 19. Kalak (38/38) - source of Light;
• 14. Shai (50/66) - 
• 13. Quadere (59/66) - source of Light;
• 13. Kandalou (4/94) - stunned, incapacitated, memory-drained (d4 penalty to ability checks and attacks);
• 09. Ven (42/57) -  
• 08. Vishnu (52/66) - 
• 05. Shadows - 
• 00. Apparition/Marble Statue -

MAP:

 

NOTES: Kandalou, Shai and the easternmost shadow are completely obscured by darkness as the party's sources of light are all the way to the west.

(Everyone can take their turns. Ven can perform an opportunity attack.)

"Need some light over here" Shai yells as she starts to head West back down the tunnel to where Kandalou is now stunned,, and realising that he must have succumbed she will elect to stay with the fighter and ready an action to defend either herself or Kandalou (ie attack whatever attacks either of them), unless she can see/sense the shadowy creature, in which case she will strike at it.

If Shai can see or sense the creature to attack, even with disadvantage (will add a secondary d20 roll), she will strike at the darkness, including an extra strike using Bonus Action - if not, then you can also use the below rolls for the readied attack

Strike 1: Attack: 12 Damage: 6  -> Disadvantage roll if needed 16

Strike 2: Attack: 19 Damage: 7  -> Disadvantage roll if needed 23

Bonus Action: Attack: 12 Damage: 7  -> Disadvantage roll if needed 18