"I should probably consult with a bunch of people on this one. Last time I thought about making a deal with him somebody else noticed flaws I didn't. But thank you for conveying the message."
And she goes and tells the Elves what she is considering.
...She thinks somebody else might have better luck with Ulmo than her, but if somebody wants to be birded and sent to plead with Ulmo she can spare them.
And whenever the other bird is back from telling newcomers about the correct Maia-repelling sigil they can turn right around to get advice from the same places on this negotiation, please.
From Nolofinwë:
Might have some suggestions with respect to Ulmo, disinclined to put them to text. I'd move the Men somewhere defensible with the time you have. I do not think it particularly likely that you'll leave an opening in the wording, but I'd expect that to happen even given extraordinary caution perhaps one time in ten, with an Enemy with these resources, and the best of possible failure modes if it fails is that you die. We have the resources to hold him off, now. Not well, not without horrifying casualties, but five years won't make that situation much better and he may be bluffing on how quickly he's able to act again anyway. It's entirely possible that it's still five years before he's recovered and he's 'offering' nothing at all.
From Macalaurë:
The rest of this letter is not written in Quenya but with a cypher we developed for the purpose of communicating with you and then wrote a lot of material in, none of which ever left our hands, so that Allspeak might have enough content to work from. We don't know enough about Allspeak to tell whether this will work; if not, send a messenger with instructions on how it can be done or come yourself.
How many letters are in the alphabet, can she brute force it by trying various installations or would that take all week?
Zoom.
Good for the star-shaped city. The Fëanorians haven't moved in yet, right?
And she lands and waves at the guards, do they remember her after all this time?
Whereupon Loki explains that if Allspeak worked that way, her sister would be able to read her diary.