The unsatisfactory result I am worried about is that the continent crumbles into the sea. For the case I should have magical powers, would you like to use your evaluative mechanism to test how strongly I feel about building a stable postwar society and making sure this capability of yours is effectively leveraged to fix the world?

It's not precise enough for me to count on its readings for that, and the concept of 'fix' is load-bearing.

Then would you like to come inside and talk? It could take a little while and the Enemy has spies.

Fine by me. Lúthien?

I don't trust him at all but if they try something that'd be very informative.

Yup.

Lead the way.

He has a conference room. It has magical glowing stones lighting it. There are bookshelves with books written by hand. He sits down. The prince Fingon sits down at his shoulder. 

We have plans for postwar reconstruction but they did not assume magical wish granting. The broad sketch is that we want to transition to a civilian footing and put our engineers on human diseases and agricultural yields instead of on gunpowder weaponry and heavier-than-air flight, though we'll probably keep working on the latter. With magic it might be possible to do something about orcs other than 'kill them all'. Luthien, if your teleportation does cargo we can keep the human kingdoms fed while we figure out how to make sure they don't have accidental children. What are your goals here?

...okay, a lot of that you can do just by importing nonmagical stuff from my world, Bella says. Also if Lúthien is any indication you would hate heavier-than-air flight if you had it. Getting people fed and undiseased were my priorities at home before I came here too.

Importing nonmagical stuff from your world would be great. Once it's confirmed the Enemy's dead we can probably do distribution pretty trivially. He looks at Fingon.

I think so, he says. Particularly if there are solutions that don't need continual distribution, but even if there aren't, we could get food to everyone in the world every week if we were able to demobilize entirely.

Lovely, Maedhros says. Do you want me to swear that that's what I intend to do with magical powers?

It's a serviceable shortcut, I guess, nobody on my world can do the oaths thing so I'm not accustomed to it as a guarantor of trust.

"I swear that I intend to use my magical powers to feed and heal everyone I can and aid in postwar reconstruction."

Lúthien confirms for Bella that this is in fact what he said. Doesn't really stop him from also doing any of the other stuff I've told you about, though.

I have heard what I'm assuming are filtered but not outright fabricated accounts of you, Bella tells him, and that oath, while very encouraging, would not prevent you from also doing miscellaneous misdeeds.

Yes, it might be most efficient for you to list out everything Doriath'd assume me capable of so I can promise not to do it.

Bella glances at Lúthien.

Swore to kill anyone who touched your family jewelry. Murdered a bunch of people because they wouldn't give you boats. Then lit the boats on fire to strand your political enemies on the Ice. People who disagreed with that decision went missing. Mistreat mortal vassals. Seduce mortal vassals. Use mortal vassals as disposable troops in the war. Walk into areas and declare yourselves the rulers and intimidate the locals into obeying you. 

There are probably others, but. 

I am sworn to be undeterrable from retrieving the Silmarils, because they are the only way my people can exist at all outside Valinor. I don't have to kill anyone who touches them, or even anyone who steals them and withholds them from us, if I can instead get them back. I am already powerful enough that oath's going to be a problem, and if I were powerful enough to be able to hold on to them then that oath is much much less of a problem. I regret that oath but don't expect it will make our goals diverge except in highly engineered circumstances, you probably don't want my people to slowly fade into ghosts and lose our capacity to have effects in the physical world.

I didn't light the boats on fire and tried to prevent that from happening. No one who tried to prevent that from happening suffered any punishment for defying our King in that, though one person trying to steal a boat and take it back was trapped when someone lit that boat on fire not knowing it had a stowaway. 

I have exactly one mortal vassal; Estolad's a separate kingdom and independently governed and we have a very loose alliance whose only real term is that we'll try to evacuate them with our own civilians if the north falls. One guy decided he really wanted to come work for me, and so he did, and is employed here; you can meet him. I have not seduced any mortals, vassals or not. The Enemy doesn't actually leave his prisoners capable of that, which anyone spreading that rumor should probably have known, we see enough of them. To my knowledge no one under my command has seduced any mortals and they'd face criminal sanction for pursuing someone over whom they had power. 

This part of the continent was inhabited only by orcs when we arrived here. I wish we had arrived here sooner. You're welcome to talk to the natives of Beleriand who chose to follow us here and ask them how they feel about things. No one under my command has orders to conceal grievances from outsiders or fears retaliation or is otherwise positioned such that you'd get inaccurate answers by talking to them. 

You skipped over 'murdered people who wouldn't give you boats'.

There's no way out of Valinor. The Valar object to anyone leaving. When we learned the Enemy was loose in Beleriand we decided to leave all the same. We tried to cross the Ice; we failed. We headed back south. We'd marched over two thousand miles by that point, we had about half a Year's supplies left, and every day we marched I was later able to verify that about twenty thousand people died because they did not have the strength or organization to stand against the Enemy.

We asked to borrow boats. We asked for help building them. We asked to be told how to build our own. They said that they wouldn't aid us in defying the Valar and departing Valinor. They said if we waited our heads would cool. Twenty thousand every day, and they wanted us to wait years.

My father decided to steal the boats. There'd never been a violent crime in Valinor before. We did not expect them to fight back. Five thousand of our people died and when my cousin - he nods to Fingon - arrived he saw us surrounded and being murdered and he didn't know we'd started it and he led his people into the mess as well. The Valar intervened and sunk ships full of our people in retaliation. They then sentenced us to die in these lands, 'by weapon or torment or grief', and for those who lived to wish they'd died along the rest, and for none of us to be reembodied even long after everyone we'd wronged begged the Valar to lighten their sentence.

So. Yes. We murdered people who wouldn't give us boats. We have been sentenced for it, and we have spent three hundred years trying to make our presence in Beleriand worth its terrible cost. 

How'd you do at improving on the twenty K figure?

We had control of the whole continent twelve days after we arrived. 

Doesn't answer the question.

As far as I know civilian populations in Beleriand have lost less than a thousand people to the Enemy, in total, in the three hundred years since the Dagor-nuin-Giliath, as that first campaign was called.

Oh. Well. Nicely done unless there's tricky wording in 'civilian populations' then.

About thirty-five thousand people I wouldn't call civilians have died in subsequent fighting. The vast majority of those have been our own people.