I haven't gotten into that much detail in my reads but based on general knowledge - uh, Melkor runs prisoners through hallucinatory simulations, often with memories added or removed, so he had a lot of tries to set up a convincing argument. I'm not sure how he stopped; any realization he made could have been erased. I can try to figure it out but we were hoping to let him be bored and not disturbed for the rest of the week and see if that helps him at all; is it important?

Vanyel hesitates for a bit, thinking. :I don't think it's urgent. So do what you think is best for him, I guess, or go with the other Leareth's judgement on it. Anyway:

Another pause. :We, um... I'm sure you'd understand that your story is very weird and also pretty, er, convenient? And we'd like to believe it but we have to be suspicious. It's hard to know what to do to verify it that's not a risk for us, aside from the other Arda being able to talk to Fëanáro here, I guess. Is that going to take a while?: 

He can make an earcuff like mine, but for that to happen I have to write down the whole spell, stare at it so he can copy it, and he has to translate it it into his own notation. This wouldn't take all week, except insofar as it trades off against error-checking the interplanar transit. He'll do it anyway but won't be done today. I can go loan my existing earcuff to the Vanyel here if you like though, that doesn't require any extraordinary outlay of time or effort.

:Just a minute, need to think about that: 

He does for a while. Comes back. :Sure: 

Next time you want to go think about something and get back to me can you give me a time to call you back? The earcuff has a usage limit. It's not small but I need it for a lot of things.

:Sorry, right, I can do that: 

:Thanks. I'll go bother this Van and get back to you.

She drops the call and knocks on local Vanyel's shields.

Local Vanyel answers right away. :Bella! I thought it’d be way longer before I heard from you! What’s going on?:

Spell mishap! We're okay but something really weird happened. Remember I mentioned Utumno? I landed in a place that looked just like it, panicked, and teleported back out with the nearest prisoner in tow, who turned out to be Leareth from an alternate future Velgarth operating in an alternate future Arda. Do you want to tell your alternate future self I'm okay for me? He's suspicious.

:Gods! How in the world did Leareth end up in future-Utumno? Also, um, does that mean the other Arda didn’t win the war with the evil god? Because that’s awful:

APPARENTLY in the future the Valar PAROLE him so mine are going to be warned and will hopefully pay attention. New edition of Utumno is called Angband.

:Eek. All right. I'll talk to the other me - er, do you have any advice for finding him? I've never used the earcuff to talk to people who I hadn't actually met: 

For me it worked to know that he's a Vanyel in that other universe I went to for a fraction of a second, it might be harder for you since you've never been but I can send you memories of the place maybe? And impressions of Other Van from talking to him.

:Um, sure, we can try that: 

Where are you, I can let Regular Leareth know I'm going and pop down.

:Stables with 'Fandes, right now:

See you in a bit.

Leareth, I'm going to go lend local Van the earcuff so he can vouch to his alternate future self. Shouldn't be gone long.

:All right. Thank you for informing me:

She lets Sayshen know too - I can bring you if you want but it'll take a bite out of my mana.

:Eh, it's fine, I'd enjoy catching up with Yfandes eventually but it's hardly strategically important and you might need that mana for other things: 

Mm-hm. Back in a bit.

Pop!

Vanyel sees her appear, runs over. "Gods, it's good to see you - I'm, um, very glad you got out again safely, that sounds like a really close call." 

"Yeah, it was scary." She hands over the earcuff and attempts to pass on her memories of the Angband cell, lightly elided for Leareth's privacy, and of talking to Older Vanyel.

"Is that what Utumno looked like too? Wow. It's, um, really not subtle about being an evil god's fortress." 

"It's really not, if he'd gone for fluffy pillows and potted plants I'd be a goner."