Burr obliterates the skeleton menacing him, then moves to the door of the church.  He finds the door held against him from the other side but [applying intimidation 22] the guards relent under his threats and allow him inside.

The rest of the party is up!

Soren feels pain and grief hearing the forlorn message from the wolves.  Grimly, he steps towards the Specter that has entered the Cathedral, baring his teeth against the curse which slows the thorny vines springing form his free hand.  The druid then paces back away west.  Knowing that others' attacks are likely to be more effective, Nettle distracts the specter to help the next attack against it, while Bramble shifts towards the main door.

"Not-father, Zefla,  I believe Burr, the wolves and the guards can hold the Skeletons.  We must destroy the Specter first, then help at the western door!"

To the recently unbound captives (among whom hopefully is Emil), he adds "dodge and keep yourself safe, away from the attacking undead!"

All the wolves continue tearing into the Skeletons outside, working in pairs for advantage.  But after the attacks, the closest two to the door (assuming Acacia and Bracken) then dart back inside (through door or broken window) in an attempt to interpose themselves in front of the closest Specter.

Soren's Movement:  E - SE - (attack) - NW - W - W
Soren's Action:  Attack the Specter visible inside the Cathedral with his Thorn Whip (30' melee attack) at disadvantage due to the hags' curse.
Thorn Whip to hit Specter (disadvantage due to curse):  14
Thorn Whip damage on Specter (magical piercing):  2 (rolled two 1s on 2d6)
Forced Movement on hit:  Specter pulled 10' towards Soren's position at time of attack and towards the main Cathedral entrance and Gregor's guards.
Soren's Bonus Action:  Bramble shifts south 15' to include all the wolves in his aura (advantage on STR checks and saves).

Nettle flies by the same Specter, taking the help action, granting advantage to the next attack against the Specter.  She then settles on Soren's shoulder.

(For which wolf is which, hoping it's ok to go by increasing distance from the main entrance to the Cathedral).  All attacks piercing, with Pack Tactics.

Pair of wolves furthest north, closest to main Cathedral entrance:
Acacia (11/11 + 7 Temp HP) against Skeleton just E of her - to hit:  20 (dirty), damage:  4
Bracken (11/11 + 10 Temp HP) against same Skeleton just NE of him - to hit:  23, damage:  9
Movement:  Acacia and Bracken dart inside (40') to interpose themselves in front of the Specter, taking one AoO from the Skeleton if it is still up.

Next pair of wolves just southeast of the first two, being the next closest to main Cathedral entrance:
Cedar (11/11 + 6 Temp HP) against Skeleton just E of her - to hit:  16, damage:  8
Dale (11/11 + 5 Temp HP) against same Skeleton just NE of him - to hit:  12, damage:  4

Next pair of wolves just further south from the previous two:
Elm (11/11 + 4 Temp HP) against Skeleton just E of him - to hit:  14, damage:  6
Fir (11/11 + 10 Temp HP) against same Skeleton just NE of her - to hit:  21, damage:  8

Furthest pair of wolves, close to Burr, southwest and furthest from the Cathedral entrance:
Gorse (11/11 + 10 Temp HP) against Skeleton just W of him - to hit:  6, damage:  4
Hawthorn (11/11 + 10 Temp HP) against same Skeleton just NW of her - to hit:  20 (dirty), damage:  6

Nettle: 1/1 + 10 Temp HP (taking the help on Specter inside Cathedral, as described above.)

Giles gives a quick, curt nod to Soren, he sees the hissing specter breach the wall of the church, and he decides to repeat his action that worked with the other one.  He points his hand toward the specter and a radiant burst of light comes down from above.  Then he turns and moves to the west, wanting to support the valiant men of Tobias as they are harried at the western entrance, he moves toward them.  

Action : Sacred Flame to the specter toward the front of the church that has breached the wall : DC 15 Dex save or take 11 points of radiant damage.  

Movement : 30 feet toward the western entrance.  

Bonus action, his spectral hand floats nearby him, doing nothing this round.

Satisfied that the terrified guard is coming back in, she adds, "Bar this door!"

She turns to the specter and again curses her mundane weaponry, knowing this wasn't going to do much.  She heads towards Soren to make sure she gets a good shot and releases her arrow.  

Attack w/adv: 24, Damage: 8 + 5 sneak attack

Then instead of heading to the western end, she heads to the eastern side with her BA of dash to assist with the weaponless prisoners and the approaching skeletons.  Trying to put herself between the specter and them as well.

The thornwhip, radiant damage, and arrow attack badly wounds the specter, but it maintains is spectral form... until Tobias rallies three of Gregor's guards to unload their crossbows on it.  None of the mundane weapons itself seems to cause much damage, but the volume of blows seems too much for the undead and it dissipates in a cloud of angry grey smoke.

One of those same guards soon comes under attack by a skeleton, as others scramble over the church pews, and still more pour in through the windows.

The prisoners have all been untied, but they are unarmed.  They flee, as their former captor is soon swarmed by skeletons.

From the western door - more screams.

And outside, the wolves and skeletons remain locked in desperate battle.

[Two more skeletons destroyed outside.  Wolf damage:

• Cedar:  11
• Dale:  9
• Gorse:  8

Burr is up, then the rest of the party!]

Burr thrusts the Bloodspear at the skeleton next to him then jumps over the pews to intercept the two coming through there....

Attack: 17 Damage: 8 + 2+1 Radiant.

Soren sees Zefla racing to protect the unarmed former captives and Nettle flies past the halfling, flapping her wings in the face of the skeleton she seems likeliest to target before flying back up out of reach (60' fly speed and Flyby, Nettle takes the help action, granting Zefla advantage on her attack.)

Meanwhile, the druid himself heads towards the western entrance where he guesses a specter must be.  As he approaches the western door, he sees it, but with the hags' curse laying heavy upon him, the thorny vines from Soren's hand sail wide this time, missing the specter's incorporeal form.

"Help me, not-Father.  I think we need your radiant magic to take down the last of the spectral undead horrors before it finishes off Tobias' pack!"

Soren's Movement:  NW - NW - W - W - W - W (then attack)
Soren's Action:  Attack western specter with Thorn Whip at disadvantage due to hags' curse.  To hit:  10 (assuming that misses).
Soren's Bonus Action:  (none)
Soren's potential Reaction:  IF the specter hits Tobias' last remaining guard or any party member, he casts Silvery Barbs to force a re-roll of the attack.

The wolves continue their pitched melee battle in pairs against the skeletons.  All attacks rolled as Medicine checks with advantage from Pack Tactics.  All require DC11 STR check on a hit or the target is knocked prone.  All damage is piercing.

Pair of wolves inside Cathedral:
Movement:  Acacia and Bracken advance, leaping over the pews to join Burr in attacking the skeletons just to their east, starting with the most injured one.
Acacia (11/11 + 7 Temp HP) against most injured Skeleton to the E of her - to hit:  15, damage:  7
Bracken (11/11 + 10 Temp HP) against the most injured remaining Skeleton just E of him - to hit:  21, damage:  7

Next pair of wolves, outside the Cathedral, closest to main Cathedral entrance, just to the east of it, attacking most injured skeleton(s) adjacent to them:
Cedar (6/11 HP) against most injured Skeleton E of her - to hit:  9, damage:  4
Dale (7/11 HP) against most injured remaining Skeleton E of him - to hit:  20 (dirty), damage:  9

Next pair of wolves just south from the previous two, attacking most injured skeleton(s) adjacent to them:
Elm (11/11 + 4 Temp HP) against Skeleton near him - to hit:  10, damage:  8
Fir (11/11 + 10 Temp HP) against most injured remaining Skeleton just NE of her - to hit:  22, damage:  6

Furthest pair of wolves, southwest and furthest from the Cathedral entrance, attacking most injured skeleton(s) near them:
Gorse (11/11 + 2 Temp HP) against most injured Skeleton near him - to hit:  16, damage:  6
Hawthorn (11/11 + 10 Temp HP) against most injured remaining Skeleton near her - to hit:  18, damage:  9

Nettle:  1/1 + 10 Temp HP (help action on whichever skeleton Zefla attacks, granting her advantage, as described above.)

Burr destroys one of the skeletons inside the cathedral, and Soren's wolves dispatch another.  

Soren's cantrip fails to snare the specter, which hisses menacingly.

Giles moves 30 feet more to the west, seeing the specter there menacing the guards allied with Tobias.  He calls down radiant energy again, asking for a blessing from his Lady to burn the specter to cinders.  He extends his telekinetic mage hand that has been trailing along with him, looking to push the skeleton back and keep it from entering the church.  “Seal the doors, retreat to the church, everyone gather and help each other!”  he continues to call out.  

Movement : 30 feet west, toward the western door.

Action : he casts Sacred flame on the specter, DC 15 Dex save or take 10 points of radiant damage.  

Bonus action : He uses his telekinetic mage hand to shove the skeleton back, out of the church if he can, DC 15 strength save to resist.  

Taking advantage of Nettles flyby (thank goodness), Zefla sends an arrow towards the skeleton.

Attack:18, Damage: 10 + 14 sneak attack

Seeing more coming in through the windows, she isn't sure exactly where to go, so she remains where she is, hoping the guard she is assisting can take down the other one next to him.

The last specter by the western entry wails as Giles' holy fire burns it, then it fixes its dead eyes upon him.  Likewise, Giles' telekinesis shoves the skeleton further beyond the door.  

Zefla absolutely obliterates one skeleton as it menaces a guard near the east end of the church.

Inside, Tobias continues to rally the last of Gregor's guards to rain bolts upon the skeletons, though it seems to be of little help.  Soren's wolves fair better, as the pack - both those inside and out - dispatch more skeletons.  While the ranks inside are again replenished by those that came in through the windows, it seems the tide has ebbed and now new undead appear.

The two guards in the western stairwell flee before the specter.  It kills one of them [Soren casts Silvery Barbs] It swipes and misses one of them.  They push past Giles and flee inside the church.  

The specter then floats toward Giles' with awful speed.  It reaches out a spectral hand toward him...

• Drain Life:  20  Necrotic Damage:  10

Giles' feel a chill pass through him and the hand enters his chest and seems to grip at his heart.  For a moment, he remembers something... a warm, comforting moment from his childhood... and then its gone and the awful chill returns.  [Giles' hit point maximum is temporarily reduced by 10.  This will not be restored until a long rest is completed.]

The last skeleton, pushed away by Giles' telekinesis, rushes back inside the church, its empty eyes glowering at Soren.

Inside and out, the remaining skeletons continue to scrabble and claw at the living and at their wolf protectors.  Inside, the westernmost of the former Gregor guards - once prepared to execute Tobias' men, now defending them - dies beneath the skeleton's claws.  

Wolf damage:

• Bracken  8
• Cedar  7
• Dale  7
• Fir  5

Soren feels Cedar and Dale begin to depart to the Feywild... before they are snatched away by something else.

[Burr is up, then the rest of the party!]

[I put Cedar and Dale on the map before I realized they were destroyed... and I wasn't prepared to delete everything I put on afterward.]

Burr attacked another of the skeletons in front of him hoping the guardsmen could destroy the other.

Attack: 9 Damage: 12 + 4 Radiant

Nettle doggedly flies once more in the bony face of whichever Skeleton at the Cathedral's eastern edge appears to be Zefla's next likely victim, granting the rogue advantage again on her next attack before flying up and away to safety.

Meanwhile, to the west, Soren gains his own advantage from his reactive Silvery Barbs earlier, negating the disadvantage placed on him from the hags' curse.  Thorny vines from his wrist lash forth at the Specter, this time finding purchase in the incorporeal undead spirit.

The surviving six wolves continue their relentless assault on their bony Skeleton assailants, howling in bone-chilling mourning dirge for their fallen brother and sister, lost once again and yet as ever unable to return home from this darkened land...

Mechanics:

Nettle (1/1 + 10 Temp HP) takes the help action against Zefla's next target, granting advantage, retreating to safety with her 60' fly speed and Flyby.

Soren Thorn Whips the Specter (melee spell attack, range 30'), disadvantage from the hags' curse canceled by advantage from Silvery Barbs.
Thorn Whip to hit Specter:  19
Thorn Whip damage:  5 (magical piercing)
Forced Movement:  (none - Soren leaves the Specter next to Giles, hoping to preserve his own concentration on Conjure Animals.)
Movement and Bonus Action:  (none)

The wolves attack the most injured Skeletons next to them, all attacks with Pack Tactics, all damage piercing, DC 11 STR Save on hit or knocked prone.

Pair of wolves inside the Cathedral:
Acacia (11/11 + 7 Temp HP) against most injured Skeleton to the E of her - to hit:  13, damage:  6
Bracken (11/11 + 2 Temp HP) against the most injured surviving Skeleton just E of him - to hit:  20 (dirty), damage:  7

Pair of surviving wolves southeast of the Cathedral's main door:
Elm (11/11 + 4 Temp HP) against Skeleton near him - to hit:  18, damage:  6
Fir (11/11 + 5 Temp HP) against most injured surviving Skeleton just NE of her - to hit:  23, damage:  4

Pair of surviving wolves southwest of the Cathedral's main door:
Gorse (11/11 + 2 Temp HP) against the lone Skeleton near him - to hit:  22, damage:  7
Hawthorn (11/11 + 10 Temp HP) against most injured surviving Skeleton near her - to hit:  18, damage:  8
(If either attack finishes the lone Skeleton near them, Gorse and Hawthorn race east to help Elm and Fir with the Skeletons near them.)

Giles gasps as the specter puts its ghostly hand through him, sucking away all of the strength that Soren had given him, he feels his chest heave for a moment, then return to normal.  Got to take care of him first… Giles thinks.  He looks behind him quickly to see how many skeletons and specters have made their way into the church, deciding whether to call down his Lady’s favor or not… but holds.  I must wait for the proper moment…

Giles again calls down sacred flame on the specter, hoping it will finally end its miserable existence.  He uses his telekinetic mage hand to shove the skeleton back away from Soren, back towards the door.

Movement : none

Action : Sacred Flame on the specter, DC 15 Dex save or it takes 13 points of radiant damage

Bonus action : Telekinetic mage hand to keep shoving the skeleton back…

(What happened to the guard by the two skeletons at the West?  Did he die?)

Zefla runs hard to get to the skeletons, and stashing her bow, she withdraws her shortsword and dagger.

Nettle assists with her first attack, and she hits with a 19 attack, damage: 8 + 12 sneak attack

Assuming that skeleton is down, she hits the other one with an 18 attack, damage: 1