This is not Idaia's closet.
It's something weird.
That could be either a really good thing or a really bad thing.
She probably wasn't going to succeed at what she needed to succeed at anyway; worth the gamble.
She steps inside.
It is available! When they are back Bella can walk her through a scroll or two!
And then a child who looks four, maybe five, will appear in Bella's lap. "Hi!" he says. "I came to rescue you, let's go before Materia eats me."
"It's okay. I was all right. Nothing ate me. And then I found an interplanar hub and somebody let me out into this world instead."
"That would be me," Idaia says in Quenya. "...Also this is another Arda but instead of getting Bella when you were little it got me and my sister when you were an adult, we're originally from yet another universe, and we were too late to stop any of the prophecies Bella got about you. But there was context that the Valar left out. And we died and somehow-we-have-no-idea-how reincarnated. We're pretty sure our version of you and his sons are dead so we're planning a magical rescue mission."
Well, of course you do. You're yourself. I've met one of you, remember?
And he needs rescuing! I have invisiblity and can walk through walls and have an interdimensional teleport, is any of that what we need?
Those are all good things and quite possibly important but we also need to be able to reembody them. Oh, and I'm married to one of his/your sons.
She does not try to use words. She has never liked them much for things like this. Instead she does her best to transmit her whole impressions of each.
This is Adult Feanaro: Brilliant, adorable when exposed to new languages, caring. Shoved into corner after corner and not always reacting in the best possible way. Invented the Silmarils, which are utterly amazing. A wonderful person, hurt until his broken edges hurt others and then cursed for it.
This is Maitimo: Blazingly social, people-smart to the point of for-all-intents-and-purposes-psychicness. Would have been the next king if everything hadn't gone horribly wrong.
This is Macalaure: Sings like any divine being from any mythology one cares to name. Also has the following other personality traits.
This is Tyelcormo: Absolutely brilliant with a bow and arrow, can literally talk to animals, good at just about everything not classified as "academic." Caring. Sweet. Fantastic sense of humor. Held her when she was grieving her parents' death. The most beautiful person imaginable. Intensely beloved by her.
This is Carnistir: Sarcastic, doesn't suffer fools well, nice to non-fools especially family, profoundly good at economics.
This is Curufinwe Atarinke: Name says it all, really.
The Ambarussa: Twins, nigh-inseparable, the kind of people who'd change the world given the opportunity.
Okay, he says contentedly. That's pretty good. I wanted ten but maybe I got interrupted. By dying. Let's rescue them.
After all the shit the Valar pulled I think it's best to wait on mounting the rescue until we have a re-embodiment solution, so Mandos can't just--steal their souls back, or whatever.
She ticks off on her fingers. Let Melkor out in the first place. Refused to let the Noldor who wanted to emigrate do so. Completely failed to do anything whatsoever to stop Melkor once he had started running amok. Tried to get my version of you to destroy the Silmarils to restore life to the Trees. Doomed you and yours after the Alqualonde Incident. Also, temperamentally indicatively, all the stuff yours did, like banishing Bella back to Materia.
Hug hug hug. They're just kinda generally terrible at their jobs. - Does anybody know you came to get me?
I left a note. It said 'I am rescuing Bella and if I die it's your fault."
I approve of every part of that except for the possibility of you actually dying.
Dunno who's going to find the note but it'll be someone who didn't try themselves to rescue you. And tried to stop me from doing it.