Donlas uses his attack of oppurtunity to hit the villager non-lethally with his rapier:

Attack: 26 Damage: 11

((Batair is obviously still trying to reach and inspect the villager to ascertain the possibility of healing, as he's oath-sworn to do.))

Lyra will trudge forward another 15'.  If she has visibility to snowman #3, she will use her action to fire off 3 more Eldritch Blast beams at #3 (or if not #3, any other snowman visible):

Beam 1:  Attack: 18 Damage: 15
Beam 2:  Attack: 20 Damage: 9
Beam 3:  Attack: 26 Damage: 15

Eldritch Blast range is 120' so that should not be an issue, only visibility and/or cover.  If she can't see any of them, she will use her action to dash another 15' (30' total) forward.  No bonus action.

Assuming Donlas' opportunity attack knocked out the villager, Lyra shouts urgently:  "3rd snowman shook off my Fear spell" - (points at snowman #3 if she can) - "I will keep Fear going a bit more - keep other 2 running.  Hold position by the villager.  Focus on snowman #3.  Pick them off as they come back.  Do NOT heal fallen villager until I drop Fear.  Maybe stabilize and blindfold so they don't see me."

Alternatively if Donlas' opportunity attack did not knock out the villager and they are running due to Fear, then Lyra is forced to drop Fear.  Would still do the Eldritch Blast as above though.

Flying another 30' forward to be next to the fallen villager, Jack expresses frustration with the situation.  "They aren't affected at all by my cold magics...It's rare, but when it happens I am not in a very good position to do much about it."

Holding his hand in the air, a swirl of wind gather's together some of the snow and soldifies it into a dagger made of ice which he then hurls towards one of the retreating snowmen.

[Cast Ice Knife...if it hits it will do 1d10+5, but the subsequent 2d6 cold damage will have no effect...best I can do and a horrible use of a first level slot...but oh well.  :P]

Attack: 12 Damage: 11

Kosmos
Moves closer to the snomen, and sends a blast of searing light into the middle of the leading trio of snomen. They all fail the save, taking damage.

Donlas
As the villager goes to run away, you smack them with the hilt of your rapier, knocking them out cold.
Need your action though, as that was only your reaction.

(Sorry missed the back to the group's turn part)

Donlas will cast misty step dissappearing in a poof and appearing 30ft forward, after the rest of his movement he is either in C2 or C3 (30ft with misty step+35/2=17.5ft).

He will strike at the snowman in B2 either way, again non-lethally, with his rapier:

Attack: 22 Damage: 8

(I believe no sneak attack unfortunately)

Donlas
Teleports forward, then moves up and strikes at one of the snowmen, hitting and dealing non-lethal damage.

Batter
Moves to the unconscious villager. He is able to tell the man is unconscious but not in mortal danger. He is stable.

Jack Frost
Sends a blade of ice at the snomen, but it flies wide, missing.

Lyra
Trudges onward, then sends 3 more blasts of power out. All three strike true, hitting #3 and blasting most of its snow away. The form of a villager is revealed almost entirely, prior to snow reforming around them once more.

Snowmen
#1 and #2 continue to flee, still caught up by the fear spell.
#1 save: 10
#2 save: 10

#3 turns though, moving to attack Donlas.
Snowball Ranged Weapon Attack: 9, range 10/60 ft., one target. Hit: 25 bludgeoning plus 9 cold damage.
Snowball Ranged Weapon Attack: 18, range 10/60 ft., one target. Hit: 20 bludgeoning plus 8 cold damage.

Back to the group...

Updated Map

((Dragon; I moved to C2 or C3 on the previous map which would be D11 or D12 on this one, so right next to snowman#3, I believe? The idea of me teleporting was that I would get opportunity-attacks from the snowmen moving away))

As the snowman #3 steps back Donlas takes an opportunity attack (non-lethal):

Attack: 17 Damage: 13

Before he is hit right in the face by two pretty Icy snowballs. In his turn he uses his bonus action for Steady aiming his lightning launcher at Snowman #1:

Attack: 29 Damage: 62

Hoping he won't kill the villager within.

"I sure hope they are leading us towards the children and not away from them!!"  He runs and jumps his total of 40 feet as he tries his best to keep up with the ones possessed by fear.

"And again!!" Kosmos shouts as he sends up his searing sunburst, this time in between snowmen 1 & 2.  Radiant damage of 7 with enlarged additional damage of 3 for each of the snowmen unless they CON save of 15.

(apparently he is getting tired - that was weak!)

((I'm posting these as both current and future actions.  Seeing his party is more than capable of handling the fight, and that the foes may not actually be foes...Batair's focus has shifted to keeping the villagers safe.  He'll attempt any healing or removal of any hexes etc. once the battle is over, and fully intends to return these [parents?] alive and well to the village along with their missing children.  He'll also have no choice but to purge any undead (lich and others), and mark their location.  The duty of penance demands it.))

Batair uses the rope from his pack to bind the unconscious villager, and lifts him over his shield arm shoulder.

He'll continue onward to check on each subsequent fallen villager to ensure his party is not slaying citizens.  

Kosmos
Moves forward, and ends another flash of bright radiant light exploding near #1 and #4 ahead of the group. #1 seems to not be affected by the light this time,w hile #4 gtakes damage.

Donlas
As the snowmen move away, on their turn before this round, you strike at #1, hitting it with the pomel of your rapier and dealing damage.
On your turn you send a blast of lightning to slam into snowman#1, knocking a lot of snow away, but it reforms fairly quickly.

Batter
Pulls rope from his pack and ties up the flalen villager.

Jack Frost
Need your action...

Still need Jack's action.

Skipping Jack. Lyra you are up.

Rolling Eldritch Blast first so I can edit below:
Beam 1:  Attack: 28 Damage: 9
Beam 2:  Attack: 15 Damage: 9
Beam 3:  Attack: 27 Damage: 13

Ok first, Lyra uses her full 30' movement to go north, north, northwest 15' through difficult terrain from C29 to B26.

Bonus action:  she then uses the free Misty Step from her Fey Touched feat to teleport forward without using a spell slot another 30' north from B26 to B20.

Once at B20, she will fire her Eldritch Blast as described above.  The first target is I think snowman #3 who is near Donlas in B11.  But Lyra takes great pains to make sure no attack strikes snowman #3 after it is reduced to 0 hp, not wanting to hurt the villager underneath.

Any further beams, if possible and not too far for visibility, are directed at the further snowman who just made their save against her Fear.  I think that is snowman #4 who I expect to come back to the group and attack now.  If that's not possible then of course would shoot snowman #1 if possible even though snowman #1 is still affected by Fear and still dashing away.

Lyra still maintains concentration on Fear to keep #1 running to minimize snowman attacks against us.  It will eventually come back, she thinks, once it makes its save.

Lyra would telepathically shout her suggested priority to the group, pointing instead of using numbers of course:  "Please advance no further!  Attack #3 if they are still up.  Then halt and attack #4 at range since they will come back to us and attack this turn.  Then #1 who is still running".

As an aside, for the next map, since none of our character names start with 'S', what do you think about using 'S1', 'S3', 'S4' for snowmen or corresponding 'V2' etc. for the villagers they become once reduced to 0hp?

Lyra
You move forward, then teleport even closer, before releasing 3 blasts of eldritch power. The first missed #3, but the second blasts the reforming snow fully off of snoman #3, and you see another villager fall unconscious to the snow layering the ground.
The third beam strikes snowman #4, blasting a bit of snow away, but it reforms almost instantly.

Snowmen
#1 continues to flee... Wis save - 5
#4 moves closer to the group then throws snowballs at Donlas. Due to range the snowballs are at a disadvantage to hit...
Snowball Ranged Weapon Attack: 21, range 10/60 ft., one target. Hit: 29 cold damage.
Snowball Ranged Weapon Attack: 15, range 10/60 ft., one target. Hit: 26 cold damage.

Back to the group for initiative.

Updated Map

Forgot to remove snow3 from the map. It will be gone on the next one; just ignore it for now.

Donlas uses his reaction to lift up one of his hands creating a force field which catches both snowballs on it.

He steadies himself for a lightning launcher shot at Snowman #4 who just tried to hit him:

Attack: 21 Damage: 27

((Reaction: cast Shield for 24AC
Bonus action: Steady aim for advantage
Action Lightning launcher shot with sneak damage))

Excited to be able to actually reach one of the snowmen, Kosmos runs up to #4, brings around his quarterstaff to knock as much sense and snow off him as possible.

Attack: 15 Damage: 9 + enlarge modifier 1

Attack: 13 Damage: 13 + enlarge modifier 2

Then attempts to unarmed strike him across the jaw

Attack: 11 Damage: 12 + enlarge modifier 2

Batair works his way with the fallen villager over his arm toward the next, that he may pick him/her up as well.

He chuckles to himself at the memory of gathering vestments in the temple, and muses at how strangely akin the two experiences seem to be at the moment.

(Full Movement toward next villager/snowman that's unconscious.  Dash action if he still has farther to go.  Picks the villager up if he makes it.)