Fran will draw her cross bow, firing off 2 shots to SP 3. She’ll have Brutus stay this round. With that many enemies far out, she didn’t want him to go charging in to face a full onslaught.

Attack 1: 21 Damage: 8 
Attack 2: 25 Damage: 6 

Although she didn't notice the enemy at first, she is still one of the fastest to react to Choirs yelp. 

She raise her wands and let out a good old fashon fire bolt at SP3.

Attack: 18 Damage: 10

Three bolts, three sparks of magical energy pierced fluorescent apparition in the lower corner of the church and it vanished, leaving only one enemy - the shadowy figure - floating there. 

But the first pair of ghostly enemies shortened the distance:

Sp1 vs Choir: Attack: 19 Damage: 9

Sh1 vs Adray: Attack: 16 Damage: Unable to parse dice roll.

Transparent hands did not reach their targets and both abomination stopped in front of the heroes, emanating bone-chilling cold of the grave.

The Minotaur's shape is not visible anymore, though whatever it was, it did not come inside.

 Ordrag, Choir, Adray

The sight and sound of the spirits would normally put a chill in Ordrag's bones, but after fighting devils and minotaur skeletons it is starting to look like just another day in hell. He weaves his way deeper into the hall to give himself more room to swing his weapons at the spirits...

Move to space left of Sp1 (opposite side to Choir) and attack Sp1. (Wow! If first attacks kill one, then second attack on the next one)

Action: Attack/Warhammer.
Attack#1: 15 Damage: 9 bludgeoning.
Attack#2: 10 Damage: 10 bludgeoning.

Bonus Action: TWF/Longsword.
Attack: 17 Damage: 10 slashing.

Glad that her only combat cantrip is finally being useful, Choir calls on the power of Akadi and casts Word of Radiance again.  Shade 1 and Specter 1 take 11 damage unless the make a DC16 con save.

Adray's temper began to flare a bit.  This was to be an area of rest for those who had died in service of the city.  The heroes of old that predated this whole contract mess  desrved better and the corruption of the place dragged on his nerves.  He knew that these things were not truly the souls of the heroes, they would have passed on long ago.  Focusing, he will strike out at the nearest shadowy creature.  

Attack: 25 Damage: 5

Attack: 20 Damage: 10

Bonus Attack: 14 Damage: 5

Sh1 save 13

Indeed, radiating such pure holy light warhammer incinerated another specter, and Choir's prayer finished off what remained of the shadow.

(Sp1 and Sh1 are no more

For 1 Ki point and a dash bonus action Adray can reach Sh3 and attack, but he is risking to face all 3 remaining enemy at once. Would he do it or would he hold the action?

Adray will creep forward about 10 feet and take the dodge action.

Adray was careful and the only showy creature that reached him was the remaining specter, which tried to attack, though:

Sp2 vs Adray: Attack: 10 Damage: 13   Monk, though, proved to be too nimble even for a ghost.

Lulu bravely intercepted - Attack: 18 Damage: 4 but barely "scratched" the apparition.

Round 2

Everyone!

Ouch a nat 20 and a nat 1..

Adray dodge the attack and then countered with a series of ki infused strikes.  Maybe this would allow him to strike the previously unstrikable.

Ooc: nothing special, just all attacks are treated as magic now at 6th level.  All attacks at Sp2

Attack: 10 Damage: 10

Attack: 14 Damage: Unable to parse dice roll.

Bonus Attack: 21 Damage: 6

“Don’t forget about teh one that went missin’! Stay on yer toes and keep yer eyes sharp.” Fran will say her self note out loud as she’d cock her crossbow to fire off two more bolts to SH3.

Attack 1: 26 Damage: 11 
Attack 2: 22 Damage: 12 

This time she’ll whistle, sending Brutus into battle. He’ll bound around to the nearest target he can sink his teeth into.

Steel defender empowering rend: 16 Damage: 4

(Party members get priority spots at their intended targets. Brutus will take the next free spot. SP2 > SH2 > SH3 for target priority.)

Ordrag again feels bolstered by Lulu's presence, as well as the group's success against the apparitions. He circles around again to support the battle from behind.

Move around to available space on the left. Preferred target Sh2.

Action: Attack/Warhammer.
Attack#1: 12 Damage: 9 bludgeoning.
Attack#2: 12 Damage: 8 bludgeoning.

Bonus Action: TWF/Longsword.
Attack: 20 Damage: 10 slashing.

If there's an available spot, Choir will try to move to where she has two targets in range again...if not, she will try at least to get close to one.

Word of Radiance again, for 7 damage, DC16 con save.

Con save Sh2 18 Sp2 11 Sh3 15 

Combined effort of the war machine the group turned into grinded shadowy attackers into cold mist, that disappeared without a trace. The main area of the Chapel remains quiet now and looks empty. This area of the chapel was used for funeral services for esteemed political and military leaders of Elturel - those who could be still buried on the Grand Cemetery. Now, that half smashed (or - miraculously half survived) window, portraying Lathander standing amid fallen soldiers, is all decorations that is left.

Three curtained archways lead inside the central chamber (G4) (curtains now are down). https://www.dndbeyond.com/forums/d-d-beyond-general/play-by-post/50210-descent-into-avernus-test-drive?comment=2276

Not trusting that all enemies have been vanquished, Ordrag would rather not be surprised by anything hiding behind curtains. Considering that the chapel is already desecrated by undead, nevertheless he looks toward the glass images of Lathandar and Torm, and with a very short and simple prayer of apology to both, Ordrag reaches over to the closest curtain and attempts to rip it from its hanging. If they ever manage to rescue Elturel and restore it to the Sword Coast, he figures it would be a small and very forgivable infraction.

Strength check? 11

May be Ordrag could consider a career of priest after all. At least he got a chance to test the sincerity and strength of his prayer (DC 10 Charisma check).

As the shadows disappeared, Adray thought he felt a little more balanced restored to this place.  He looked around and saw Ordrag heading towards the windows depicting Lathlandar and Torm.  His first time visiting, he was less concerned about the artisty and lore of the gods and more into the stories of the heroes but if one was ever going to start really believing, going to Hell was a good reason.  He knew little about Torm but knew a little more about Lathlandar from his father.  A god of new beginings and road to self improvement.  Standing a few steps behind Ordrag, he bowed his head slightly and offered not a prayer to himself, but one to the people, in hopes that they would see that new dawn outside of Hell.

With the few seconds of that done, he calls out, "Great work so far.  Let's keep up the momentum.  Gather up.  Ordrag and I will take point again."

Polly look around, glad that the fighting’s over but still uneasy and on guard. “ I have to ask you all to hold up here for a few minutes first Adrey. I’m believe we need to be as prepared as possible so I’m gonna check if there’s any magical forces waiting for us.” 

She start to dig around for her spell book and open it to the intended page and start to ritual cast Detect magic. While looking for the book she tell Owis to take a look around and tell her if there are anyone else, living or dead nearby. (She does this by talking to him and showing him mental pictures of the different encounter they have had so far.)  

Charisma check: 3