"No, silly, my special talent is cheering people up! In most places that doesn't require me to enjoy torture!"

"From what you've mentioned of Carissa they share a talent for spellcraft but no other discernable similarities."

"And ascending to—oops! I wasn't supposed to say that!"

(Twilight is still too out of it to really notice this, although possibly not too out of it to go 'wait what?!' several days later.)

"I don't know what's up with her. At least when people on Golarion are like that we can reliably blame Nethys."

"Actually, in Pilar's case it was Cayden Cailean. Though maybe Cayden Himself was cursed by Nethys, I can't rule it out."

"Like I said, my special talent is cheering people up! That includes everyone watching us from an angle you can't see! Hi, by the way!"

"I highly suggest not asking unless you are a god. I have at least 10 Wisdom on you and still would have preferred not to know."

"I think I gave up on asking when she Plane Shifted us into Nessus. In an alternate universe."

"Getting between different copies of Creation isn't categorically different from getting between different planes." That much isn't infohazardous. "I wouldn't expect a Plane Shift to do it without Nethysian bullshit, but a Wish could if you knew how to specify where you wanted to go."

"In that case I expect we'll be Wishnapped home by our local demigoddess slightly more than fifteen minutes after we arrived, so you'll have to give us the quick version of the tour."

She looks quizzically at her alt. "'Home'?" she says, and the point is made.

And then there's the feeling of a spell that they could in theory resist but in practice have no hope whatsoever of resisting, and they're in Celestia's throne room in Canterlot.

She looks kind of annoyed.

Things are quiet in Ponyville for a while after their misadventure. Twilight seems significantly better the instant they're out of Hell, and appears to recover fully within a day or two, but she never speaks of interplanar travel again; neither, for that matter, does Abrogail. It's not because she expects the endeavor has been cursed by some power beyond her comprehension—if anything, the strange alternate Hell, where her counterpart had become a senior devil of some kind while still visibly being herself, would be among the best places in the Great Beyond for her to go if she decided to leave Equestria. But she was there, and she didn't stay. Why not? Well, she couldn't have resisted Celestia's Wish—but she cannot, despite her best effort, figure out why she didn't even try.

She does contemplate asking the Princess to send her back, even if only temporarily. Her conversation with her alt had been cut rather short, and it's not as though Wish diamonds are expensive here (if Celestia even needs them). She hasn't seen the Princess since the first trip to fake Hell, though. Maybe she can ask at the Gala.

🎵 "At the Gala!"

"No, no, no, no, no. Wait until we're actually there, girls."

"Sorry, why do any of you even want to go to this gala? I wouldn't have imagined you to be the royal ball type." Even for her, a Palace event where she isn't Queen and can't torture anyone afterward sounds honestly pretty dull.

"To spend time with the Princess, of course. I've barely gotten to see her since I moved to Ponyville."

"I'm going to make friends with all the animals in the royal gardens!"

"I'm gonna sell apple treats to everypony in Canterlot and raise enough money for Granny Smith to get her hip fixed."

"Duh! The Wonderbolts will be there!"

"It's the biggest party in all of Equestria, silly!"

"Well, I'm going to meet my Prince Charming."

"...have any of you ever been to a royal ball before?"

Possibly in Equestria things really do work like that. But in her experience, nobility are the same everywhere. Chelish ones aren't even necessarily the worst.