The hole in the ground is called "Angband". It is not a nice hole. However unpleasant a hole you are imagining, it is probably worse than that.
The orf knows how to live in this hole. If she waits until the blacksmith from division 209 is in a good mood she can sit in her smithy and watch sparks fly, bright and hot against the darkness. If she's well-behaved and submissive and quick and clever she can pretend to be an Elf, a real Elf or an imaginary one, for some hapless prisoner whose plot arc needs more personality diversity or a few extra facial expressions in a crowd scene, and get memories of that Elf or at least a skeletal backstory and add precious songs to her repertoire. If she goes down this staircase when a mission's gone well then she can get roughed up by Weird-Ear's squad and look battered enough that nobody else feels obliged to make up the difference for a week, but Weird-Ear doesn't mind getting her turned on first so it's much better than running into somebody with more refined sadistic tendencies. If she goes up two floors and over half a mile of dicey corridor navigable only by copious mindreading she can visit the spot where her mother died, but she doesn't usually do that. If she gets a scar that doesn't seem like it'll fade she can get a bit of the kind of white rock that makes scratches on the black stone of the fortress and show the tattoo artist from division 447, three hours' walk away, how she wants it neatened up and colored in or scarified - she's got a waterfall of overlapping circles burned into her shoulder, spirals up her calf, a field of bowing wheat scratched in over the whip marks, shooting stars down her temple from when she visited the blacksmith in a bad mood and she grabbed her by the hair and held her face near the sparks till she'd apologized enough.
If she goes alllllll the way up, and avoids the guy who likes feet who'd make it hard to walk back and avoids the Balrogs who are too hot to even get near and avoids the entirety of division 192, she can find Thuringwethil even when they aren't working on the same hallucination together! And she can bow very very deep.
- yeah, all right.
They go down singing the orc song. They are not attacked. They ask the kids what they swore.
Some of them did. Less than half.
"Just to obey Melkor and trust their parents' guidance on his will."
"I'm so sorry."
"We'll do it."
The orcs, it seems, have orders to plead for their children's lives and not to fight back.
No, she doesn't.
"We're the good guys, you see, Nelyo, because at least we don't fuck them."
"We're the good guys because we are the only people on the face of this world who saw fit to go fight Melkor.
If you need a break -"
He helps distribute the kids. The kids are terrified.
The older of the orcs are old enough to be clear on how the Elves killed their family. The singing's all right. It does help that she lets them hold her own baby, and that they manage not to act hesitant about that.
The two hosts reconcile with an outrageously complicated governance agreement by which Maitimo is technically not King of anyone who crossed the ice but they will listen to him anyway. The new ones move in.
Isn't it that. Also with the Enemy apparently in osanwë range and observing them closely he wants everyone in one place and taking security measures against infiltration that would be intractable with the hosts separated. Everybody's supposed to have a few people sharing their eyes at all times when outside the walls.
They might settle the south side of the lake eventually but right now'd be too soon.