"I was in one of my human morphs - this one," he flickers briefly into the appropriate shape to demonstrate, "and I walked into the library and instead of the library there was this bar. Cute guy sitting at the bar with a ton of pizzas told me it was interdimensional, we got to talking, I said my name was Ophelia, he's Zeus apparently, and also apparently his boyfriend is a - what was it he said, something like 'pansexual masochistic snuggle-fiend with a shitty home life', anyway there's like twenty of me and we're collectively called Jokers. I'm also pretty damn sure there's a bunch of you, but I only met the one, and I don't have a way to verify those. The Jokers all telepathically dumped their life histories on me, I gave back something heavy on the childhood trauma and light on the identifying details, I'm pretty convinced about them, but I don't think the same solution exactly applies when it's you."
"Okay. I'll - hm. Do you still care about secrecy, should we meet 'em somewhere that's not your house?"
And he thinks for a few seconds, and then says, "Okay, there. Asteroid time," and vanishes.
[Asteroid's in the same time bubble as your house. Teleporting should be obvious but I can come get you if it's not.]
"And now I call 'em," he says.
He tells the link that there is a Bell in his world who wants to meet the rest of her.
Celo, being the one currently in Chronicle, brainphones Glass.
[Hey, turns out Ophelia's got a Bell, she wants to meet you all, somebody'll get a Janegem to her in a sec—] Harley appears on the asteroid. [—there, somebody did. Reading between the lines, something's going on in their world that makes Ophelia intensely fucking paranoid about telling anybody anything about them, and if it's enough to make a Joker paranoid, I can only imagine what the Bell's gonna be like.]
Harley plops himself into Trouble's lap. (It is not at all difficult to figure out which one of these people is Ophelia.)
Glass appears.
"Hello again, Ophelia. Hi, new Bell, pick a nickname."
"Butterfly it is. I'm Glass. You look kind of... uh... shellshocked."
"You look like me. How do I know that you don't just look like me?"
"...I'm not sure if we've actually had this problem before. We know you're us because I can tell by looking - before that Bar did the same thing - uh, you can tell we're you because we're about to hand you lots and lots of magical power and assume you'll do good Bell things with it?"
"This... isn't a trade. This is, you are us, therefore if we just free and clear give you stuff, stuff that we would approve of will follow straightforwardly. ...Uh. Possibly I should mention that one of us is in school to be a therapist. What in the fuck is wrong with your world?"
"That's n- one of us grew up on a planet where literally every human being was brainwashed on a daily basis to adore the brainwasher and the monarch who employed her. She's not shellshocked. Butterfly, what's...?"
"Except her, yes, I neglected to say; some of us have a template immunity to mental magic - what happened to you?"
"Okay - time dilation is already in place, so, good, everything will be okay, Butterfly, do you want to come camp out in the Belltower and learn about magic and relax and so on, the world will wait, it's waiting very patiently, you can come meet all your alts and make plans and we can grab anybody you want to have visiting and explain it to them too, usually we have a party when we find a new one but you don't seem to be in the mood - it'll be okay, there's no native magic here, we will handle it all for you if you need us to, okay?"
"Do I have to actually do anything or can you just take me whenever you want and you're being polite?"
"...Second thing. If you would rather just sit there silently rather than risk inviting a metaphorical vampire into your metaphorical house I'll whisk you away in, say, five minutes."