That works. I think that the yaks might be momentarily alarmed, but it would be kind of hard for them to bolt while being hoisted into the air. You can assume that the yaks are up there with you now and proceed.
After ascending the glacier, you travel along the bottom of the crevasse as it shallows out and ascends towards the surface of the glacier. As it approaches evening, clouds cover the sun and the wind picks up, becoming almost preternaturally cold.
Please make three more fortitude saves for cold, and an additional save (DC 18) for the extreme cold to which the temperature is plummeting.
Quodak is right about the healing, you can't heal the subdual cold damage until you warm up once you have hypothermia.
As you walk along through the rapidly worsening weather, you suddenly see a single humanoid figure standing before you, seemingly wrapped in the incipient snow and wind like a cloak. He speaks in a hollow voice, in draconic. "More humans come to our lands. Your kind is not welcome here, the passage of the Dwarves is affront enough. Leave now, this glacier is ours by ancient right and negotiation.
You know stories to scare small children, stories of the inhabitants of the highest peaks and glaciers. Some, however, say that they are the spirits incarnate, which are worshiped by the Orcs and more than a few Humans.
The spirits worshiped by the Orcs are said to sometimes manifest in physical form. This may be an incarnate spirit, worthy of worship depending on how into traditional Orc religion you are.
Knowledge:Religion (DC 21):
Stories say that in the most remote parts of the world spirits of nature incarnate themselves. They are invulnerable to any weapon made by man and have power over the cold and stone. In some stories they kill and enslave the Humans who have moved into their territory and in some stories they are in turn servants or slaves of the Dwarves.
They are Fey, but you don't know that word.
Got it. Small edit then.
When the cold is at it's worst and Orion feels the chill he asks Moredrel to borrow the Endure elements cloak for a bit. Using the cloak to effectively warm himself up he then casts his spell and feels much better as the spell runs it's course. So revitalized he hands the cloak back to the smaller man.
Quodak pauses as Orc begins talking to/at the figure, and translates into draconic, that being the language the figure first spoke in, and sending the figures words along the collective so that Krathok could understand it.
A nascent growl stirring in Krathok's throat he replies "Ek is gestuur deur niemand, is niemand se slaaf en my eie pad te loop ...en julle het nie antwoord op my vraag gees ....watter huis is jy?" chin jutted forward and belligerent despite the cold. He is careful though to not take any further steps towards, instead holding his ground.
"I was sent by none, am no-one's slave and walk my own path... and you did not answer my question spirit.... of what house are you?"
"Spirit, we did not intend to offend. We are travelers from afar and knew nothing of your presence or agreements. The Dwarves suggested this path to us.
We know nothing of this usurper you speak of, but there are strange new things in all the lands and we dreamed troubled dreams on the slopes below the ice. May we know more?"
Watter huis? Die huis van die winter, die huis van klip en koue, wat jou mense het as gevolg van eerbied.Ons was hier voor jou en ons sal hier wees na hierdie wêreld is ingesluk deur die nag. The sinister figure replies to Krathok, before turning to address the human members of the party in draconic. The Dwarves should know better then. Although you do wear their raiments. He gestures to Quodak's helmet and Krathok's torc. Our agreement is with them, not interlopers from another world, and your so called gods who take from us the reverence which we are due. Your kind is especially not welcome here; you have done us the most insult, you who once called us brothers. The last comment is directed towards Orion with the same haughty tone suggesting that the speaker has an unfair advantage over you. As the figure speaks, he does something intangible, which you cannot quite put your finger on, but you can feel the effect in your minds.
An SLA was just used on you, you should all make will saves.
What house? The house of winter, the house of stone and of cold, to which your people once gave due reverence. We were here before you and we shall be here after this world is swallowed by the night.
Why would we ask? Your kind tells nothing but lies, human. It is difficult to tell if the words are spoken, or if they are planted directly into the collective.
I was waiting for your guys to try some diplomacy or other social skill checks, since the mysterious figure still seems pretty hostile, or at least unfriendly to you.
Spoken and thought in Xaidan. Perhaps he'll understand perhaps not.
"I am not human. I am an outsider wherever I go. I have no love of the dragons and would strangle the oppressors with my bare hands if I had the ability. We don't know you and have no anger toward you. We simply flee the dragon gods minions. We have no home so we simply travel."