And a while later a note says the Valar think they could make a portal to your world. Are there things that might go wrong if they did that?

Probably. I don't know how people will react to it.

They might send some capes to check it out but their powers will probably stop working here. I don't think they'll send the army or anything.

If they only make it big enough for people I don't think an endbringer could come through but you definitely want to be careful about that.

What's an endbringer?

They're big magic monster things. The capes fight them. They only come sometimes, it's a big deal when one does and I think they can guess when it's going to happen soon, if you can close the portal you could just close it then.

Okay. The Valar could probably protect us but I'll make sure they know how to keep Valinor safe, it's really really important to them that Valinor always be safe.

Yeah. I don't know very much about them but there's more on the internet.

We'll go figure it out. The Valar might set it up so no one can go through from your end at all, at first, while we're learning. Since you said people might try to make you go back. We could stop them but it'd be better for it not to come up.

That sounds good. Thank you.

Of course. What else do you need?

Is there someplace it'd be better for me to stay? Since hiding doesn't work.

Would you like a house?

Um.

Is that normal here?

Most people live in houses, yes. Not all of them. Some people like platforms in trees, or boats.

Okay. I guess.

If you want something else that is okay.

If I ask for something I want then you know what to take away later. A house is fine. Staying here is fine too.

When the house is ready I'll send you a map of how to get there.

Thank you.

They do that. It has a basement where it's properly dark, in case that's something she misses from wherever she's from. It has whole rooms full of food. It has a door you can bar from the inside. It takes a while, but their conversations proceed very slowly. After a while she sends a map.

The house is absurdly nice - a bed, how long has it been since she slept in an actual bed, and chairs and a table and everything, and the food, and the lock, wow, a lock, it's even the kind you can't even pick from the outside - and she's going to miss it when this inevitably blows up in her face, she can already tell. She bars the door and closes all the curtains and makes herself a nest in the basement and gets the best night's sleep she's had in months.

There's a mail slot, through which they put a note saying if you like, you could make a list of twenty things, some you want and some you don't, and I could get you all of them and wouldn't really know which ones you wanted.

It isn't that much harder to take twenty things away than to take one thing away.

But thank you for trying.

...she's not actually sure what to do with the note. She ends up sitting by the window watching for someone to come looking for it.

They walk by and check her doorstep and then keep going.

...all right. Back out the mail slot it goes, then, she'd assumed wind would be a problem.

Doesn't seem to be. 

She gets occasional progress updates on the portals. The Valar want to put it far from the city just in case there are problems. They are going to only allow certain people through, at first.