Note: There is a cutscene approximately 30 minutes long immediately after exiting the dungeon, with the first 17 minutes being auto-advanced and cannot be paused. Plan your time accordingly.
Hermes has taken refuge within the observational facility of Ktisis Hyperboreia. Although the reasons to do so are as diverse as the company you keep, it is decided that you will chase down and confront the chief overseer and his creation.
You arrive at the front door to find the facility in a state of alert. The scholars milling outside seem oblivious as to who sounded the alarum or why, but for you and your companions, the circumstances of this emergency are crystal clear. Wary of what other obstacles Hermes may have placed in your path, you assign roles, square your shoulders, and prepare to march into the magically expanded environs of Ktisis Hyperboreia.
※To enlist your companion NPCs for this duty, speak with them near the entrance or access Duty Support via the main menu. Use the Duty Finder if you wish to complete the instance alongside fellow players.
You fight your way through the many fields and floors of the facility until at last you reach the highest platform in Ktisis Hyperboreia. There awaits an unrepentant and transformed Hermes, who refuses to surrender Meteion into the Convocation's custody. A tempestuous battle ensues, but in the end, your efforts to subdue the chief overseer prove successful...
Silent until now, Hermes's question about happiness amongst the stars prompts Meteion to step forward and describe the anguished desperation of the races she encountered. She declares her intention to relieve all life of the burden of existence, and Hermes, after binding your companny in chains of aether, accepts this ultimatum as a challenge to the worthiness of mankind. In order to ensure the "fairness" of the determination, the chief summons Kairos to alter the memories of everyone present, such that all that occurred since your arrival in Elpis would be wiped clean. Before the process begins, however, he bids Meteion escape to the edge of the universe, knowing that he will soon believe her and her sisters to have perished in an accident. It is then that Venat breaks her shackles and chases the entelechy into the sky. Likewise freed of your bonds, you and Hythlodaeus distract Hermes, while Emet-Selch tears a hole in the spatial confluence to afford you and escape route. Venat returns from her failed pursuit just in time to have Argos bear you both through the portal and evade the Kairos-induced amnesia. Hythlodaeus and Emet-Selch are not so fortunate, and now it falls to you and Venat to remember - and safeguard - your respective realities.
Rested somewhat from the encounter, you listen in sadness as Venat explains what will likely become of Hermes now that Meteion is gone. In an instant, it seems that so much was lost, but there is much that remains for you to do...
If all Hermes means to do is listen to Meteion's report, then it is his right to do so.
But once he receives the answers to his question, what then? The fate of the world may very well hinge upon the choice he makes in that moment...and we must be there when he makes it.
Considering the expansive dimensions of the place, even we may have a difficult time locating his aether. All I can say is that he entered from the rooftop, and likely arrived at the uppermost point in the facility.
'Tis clear we stand on a precipice, but we have yet to determine beyond a shadow of a doubt that Meteion's is the hand which tips us over the edge.
Nevertheless, if we are to learn the truth of the Final Days, we must give chase. And even if neither Hermes nor Meteion is ultimately responsible, we cannot leave them to suffer this torment alone.
And you, Emet-Selch, can impress us with your arcane majesty. You lob potent spells as easily as breathing, but can also channel that power in a protective manner if you so choose, yes?
I said that Hermes was likely perched somewhere at the highest point of the facility, but reaching him will be no mean feat.
To put it simply, Ktisis Hyperboreia contains a multitude of vast spaces linked together at the seams, meaning the interior is far more massive than even this grand structure might otherwise suggest.
But even a colossal facility filled top to bottom with savage creations will not stop you ─ not with Venat and Emet-Selch at your side. And I will be there too, of course, cheering you on!
From the moment we met you, our visit has devolved into a never-ending series of complications and irritations. In spite of this, I have gained one useful thing:
An awareness of dynamis. To think that a power with the potential to corrupt aether had largely escaped our notice...
Whether or not I believe your tale, the facts underpinning your narrative will be the source of much debate.
So understand that I act not for the sake of you or your fantastical quest. My duty demands that I apprehend Meteion ─ and if that now means Hermes as well, then so be it.
I will not seek to impede such an august company from going about its business. But please, do be aware that many of the specimens within are far from docile.
Venat and the player escape. Kairos activates and erases Emet-Selch, Hythlodaeus, and Hermes's memories of the recent events. Venat and the player land outside.
Are we the only ones left who see beauty in the world ─ in life?
Are the stars above no more than husks of fallen civilizations?
And yet...
...I feel her. Though she is unimaginably distant, I feel Meteion's presence ─ and the place whereto we must go.
Ere she made good her escape, I placed an enchantment upon her. One which allows us to follow her trail.
She has already left the outermost bounds of Etheirys, and continues on her way. Given the vastness of the universe, it will still be no easy feat to track her down.
But thanks to Emet-Selch and Hythlodaeus, all is not lost. We remember.
So long as we remember, our fates remain ours to shape.
Yes, yes, you do that. Now, if we may tend to Hermes? Whatever this Meteion did, it seems he bore the brunt of it.
Once you are fit to travel, you will return with us to Amaurot. We need to make certain there are no other ill effects.
Also─I am here on business of the Fourteen. We've already had the conversation, like as not, but since your toy wiped my memory, we'll have to have it again.
Are you feeling at all recovered? I understand that your exertions were more than purely physical, but resting one's body, if only for a moment, is never without merit.
As for Hermes... I think it unlikely he will create more entelechies.
He poured much of himself into Meteion, and now that she and her sisters are gone ─ dissipated, in his mind ─ the grief must be unbearable.
He will blame himself. He will believe that, had he never acknowledged his dissatisfaction with the world, then the Meteia would have never been born to suffer and die.
The offer to join the Fourteen will be a welcome distraction, and one day hence, he will face the advent of the Final Days in the role of Fandaniel...
Trivia
During her report, Meteion makes mention of multiple fallen civilizations. The former three are most likely the people from the eighth end from The Dead Ends, the Ea, and the people from the seventeenth end, respectively.