Hifu, as you reach the opening on the south side, you notice a massiv large stone slab that seals what looks like a door.

At the same time the goats try to hit Gilgin and Kravek again.

• Attack vs Kravek: 6 Damage: 7
• Attack vs Gilgin: 10 Damage: 8
• Attack vs Gilgin: 7 Damage: 6

Gilgin and Kravek, you also notice a giant owl flying out of the cave and up, but you loose sight of it quickly because of the dense fog.

Round 6:

Seeing the pathway he wanted blocked off and the overall shape of the party, Hifu decides to flee at this point.  He exits to the north, pausing to help James along, planning to pause and stay behind him, dodge any Giant Goat attack if they are following.  "Back to Lonelywood!  On me!  Let us fly, the Moose is dead!"

“Och, Aye, ye damn goats! I’ll be back and have your hooves for breakfast!” Gilgin splutters as he carefully chases after Hifu

(I'd like to wait with Nyx for someone to point out the owl flying away so she can take a shot at it. If nobody does then she shoots a goat instead.)

Eldritch blast: Attack: 8 Damage: 7 Attack roll with advantage due to the warcry: 17

Kravek still stands near goat1 seeing hearing his allies call for retreat. Kravek ducks a bit as a response to the owl flying over. He looks back to the goat with anger in his eyes with adrenaline rushing through his veins from the Chief's warcry. He draws back his hammer once more to bash into goat1 Aarggh. 

Shortly after the attack Kravek will call to his allies Be carefull of the skies the druid summoned flying beasts. (doubt Kravek knows about shapeshifting). 

He will then fall back with the others but not turning his back on the goats and trying to be the last one to fall back (apart from the chief). 

Action: Warhammer attack on goat1 (with adv from warcry): Attack: 20 Damage: 12
Movement: Moving back to get away from the goats and follow the others

The orc having taken some damage from the goat sees some moving back and curses something in orcish. He grips his axe firmly as his muscles bulge as he rushes forward into the goats again. Shouting in orcish

His axe moves diagonally through the air to cut into the first goat he can reach and with skillfull movement he lets motion of the axe follow through turning it into another draw as he plants his feet firmly and slashes the axe into the goat again. 

Orc: 
Movement: Moving towards the goats again in case he is out of reach. 
Action: Attack twice with his greataxe
First Attack: 10 Damage: 15
Second Attack: 25 Damage: 9

(I will assume that James moves away and dodges again)

James, Hifu and Gilgin slowly back out of the fog and the area of the dial, making sure that Gilgin and Hifu stay between James and the cave. Nyx, without an idea where the bird may be and Gilgin and Hifu retreating, you shoot your blast towards where you hear one of the goats. Kravek, you see the goat in front of you hit by an energy blast and you hear a desperate wail as the goat turns into ash and disperse into the fog. A bit confused, you step forward and strike another goat before retreating back towards where everyone else fled towards. As you retreat, the goat you attacked tries to hit you in the back. The war chief steps forward , blocks the cave entrance and attacks one of the goats. The first strike goes wide, but the second hits the goat and kills it, but this time it just disappears. The last of the goats within the fog attacks the war chief.

• Attack oO vs Kravek: 23 Damage: 10
• Attack vs War Chief: 13 Damage: 10
• Attack vs War Chief: 6 Damage: 5

Everyone (except Nyx who is still inside the fog) sees the giant owl flies out of the fog up into the sky and away from the group in a fast speed. You see it disappears over the top of the hill (120ft).

Round 6:

Nyx hears the others back off and does the same. She can see now the owl flying away and just shoots off one last eldritch blast in case it's still in range (it is, the range is 120 feet):

Attack: 13 Damage: 4

The hill fits a small house inside, small enough that the owl was able to fly over it and went into the trees behind it. You don‘t see it from where you are.

Hifu would keep up the retreat, along with James and Gilgin, calling to Nyx and Kravek, and making his way toward our Igloo and Boga's body.  

Nyx calls out to Hifu, "Hold on! Lets see if anything chases us first."

She holds an eldritch blast ready in case anything pops out of the fog. If nothing does in a few moments (a round or two) then she'll call the others to halt once more. "Lets figure this mystery out and take a memento of the moose. Otherwise we have no way to demonstrate our success other than a dead ranger. And that's not good."

Gilgin stands in line with Nyx, holding his shield forth and holding a prayer. “C’mon, let’s silence that bloody bleatin’” 

Action - Ready a Toll the dead on first goat he sees coming out of the fog. Dc12 Wis Save

Kravek will stay close to the group but keep watch to see how the Chief is doing on his own. Standing at a distance simply watching ready for one of the animals to come for them. 

Kravek:
Movement: Moving with the group
Action: ready Dodge

The orc Chieftan parries the goats attacks as he displays his experience in battle. He swings his axeblade wide trying to slam it into a goat only to shift his weight afterwards and pull it free for an overhand slash to follow it up. 

Orc
Movement: None staying engaged with the remaining goats
Action: Attacking twice with the greataxe 
First Attack: 24 Damage: 10
Second Attack: 16 Damage: 20

James is appreciative of Hifu's help moving. As he and some of the others get some distance between them and the fog cloud, James sheaths his great sword and pulls out a crossbow.

James takes aim back towards the fog and the mound above and around it, ready to shoot any hostile creatures that come in the groups directing.

James continues to move back with the group but it is obvious he isn't moving as fast as he normally would.

The group keeps on slowly backing further away, while the war chief takes care of the two remaining goats near the entrance. (41 6 ) Over the next few seconds he dispatched of both of them. One goat lands a lucky hit and the Orc takes a little damage (6).  While this happens, the fog starts to dissipate and you can see the war chief spirit stand inside the cave entrance.

(You are out of combat.)

Nyx heads on inside to take a look around. 

"Lets do standard exploration - one stays here in the middle and pairs split off to investigate. If anyone encounters anything then bring the fight back here and we will deal with it with the help of the Chief." 

She looks around, "Who is the most hurt should stay here with the Chief" 

Hifu heads back to the cave with James.  He leaves James with the chief and starts to explore, heading back in the direction the druid came from , toward the northwest on the map.  

James remarks to Nyx and Hifu as they head off to explorer.

"I'm not sure that's standard..."

But the pair are already off looking around and James doesn't the have energy or willpower to chase after them.

James looks the Orc over, reaching out to him with his mind.

James does his best to keep a watch for a reappearance of the druid or more hostile animals, giving a worried look out the entrance, over towards the tomb.

Gilgin pats James on the back, “Don’t worry, if there are any gems I’ll share.” Before he follows Nyx.

Cast guidance on James