Better not linger in her starting place too much longer. Yellow's faster than her and may have already come home to a wreck. Thorn might have a habit of checking up on the place, even, just in case. She's invisible, inaudible, unsmellable - that won't help if he sends someone thorough. Or comes in person.
She sets out.
She's been flying for about thirty minutes after her shopping trip when she falls through a tear and squeaks inaudibly and lands in the middle of -
"...I didn't even describe the bad parts. Yes, this is normal. He probably won't even be particularly offended about being envassaled back."
"I can definitely help you. Am I really the best person for this, though? It sounds more like a job for one of the heroes."
"If you can think of someone who's willing to tell me their name to be sworn to secrecy and could get Yellow's name out of him without, say, torture, and would hand him over to me afterwards and that person isn't you... feel free to make a suggestion."
"Good point. I'd probably even be safer than most of the professionals, as long as fairies aren't deaf. I can just sing the whole time."
"Yellow's not deaf. I mean, he could have punctured his eardrums, but he has no reason to do it."
"To get to Fairyland safely through any gates I currently have set up, yes, they're all about a mile in the air. It would separately be a really long trip from the one on the right continent to Yellow's usual area. And he might not be trivial to find; I burned down his house before I left and he could have taken the opportunity to migrate. After you find me an address I'll make a new gate from there."
"Yes, at ground level. ...I have thought of another non-Fairyland project you could help with. It would just involve getting past some layers of indirection with a phone call so I could be sure I didn't accidentally get a secretary's name. I could ask the PRT if you don't want to, but I think I'd rather do it independently."
"An anonymous party slipped me the real names of the parahuman membership of Empire 88. I didn't read it all, but I had two names before realizing what it was. I agreed with the Director that I shouldn't read all the rest of the names, waltz in, and pack them away, in case the anonymous party was someone unsavory who stood to benefit from a destabilization in the city underworld; but nor do I plan to let them continue their various behavior unchecked forever. So at some time not chosen by that party I'm going to collect the two whose names I have. The PRT wouldn't like all of the details I have in mind, but I don't work for them."
"That sounds like cape business. I'd only be doing anything over the phone, right, no one would need to know I was involved?"
"Okay. I don't have a phone - can you pick one up for me while you're doing things? I have no meaningful phone preferences except that if phones ever show names that one hasn't told them to show it shouldn't do that."
"Of course. I've got some other business in the city, but I'll get to the phone and address right after."
"Thanks! I check my email several times a day, if it's inconvenient to come find me in the PRT building, and I'm keeping a roughly local sleep schedule."
"I was mostly just here to ask about the orders and thank you again for saving me. Which, thanks."
A couple days later she informs Promise that the place exists and is otherwise unused and will work for interdimensional kidnapping.
Presuming Canary can also provide flying directions or a map, Promise is there in short order. Her tinker-made computer asserts itself in the local wifi without her having to fiddle with it and she confirms that lightswitches are still the same sort of contraption here that they are in the PRT building. There is no furniture, which helps her learn the place; she turns out all the lights and prowls the living room. "I like the hedge," she tells Canary.