Jessica goes to pee before they even start their assignment, after just introducing Lexi to her mom and dad as "one of Chief Swan's kids", and Lexi doesn't want to do work by herself or she wouldn't have come over in the first place. She sits on the couch and plunks her bag down and waits. There's a random deck of cards over there; she picks it up and flips through it. She's been trying to learn to bridge-shuffle.
"Oh, geez, okay, I hope Bella doesn't guilt me about starving orphans and cancerous grandmas every single time I want to do something fun - Of my - I need the phrase thing again?"
Then, so do all of Lexi's clothes.
"Initiating unison," says the voice of the deck.
Half a heartbeat later, so does Lexi.
She is suspended weightlessly in the middle of a blank black void, lit in colourless greys by a sourceless light.
The voice of the deck says, filling the entire infinite space, "Unison complete."
"Is this part of the limitless power thing? I need to go talk to my sister," Lexi calls into the void. "Where am I?"
"You said that already, you said I was going to have it, how do I use it?" Lexi complains.
"Grab him!" hisses the staff. "If we do this in here we'll blow the roof off and there's probably people in it outside the barrier!"
Bella makes a disgruntled noise and lunges forward, seizing the white-haired guy by the front of his shirt.
A blast of energy in the same every-colour as the staff's other magic lances out of it and slams into their opponent, knocking him loose from Bella's grip and propelling him twenty feet backward through one and a half trees. (The first disintegrates on impact; the second only cracks in half.)
"Now we hit him again," says Brilliance, letting off another energy blast. "You can fly, by the way, that's probably gonna be important when he starts hitting back."
"How do I fly?" exclaims Bella. There's little color-feathered wings extending from her heels like she's Hermes, but she can't feel them to even try flapping.
"Try wanting to," Brilliance snaps, and then the distant figure glows brightly and Brilliance hauls himself forward and fires another 'Fuck you!'.
"I do want to!" shrieks Bella, trying to help out by aiming him so he doesn't have to wrench around in her hand like that. "I'm not going anywhere!"
Half a beat, and then another "Fuck you!" and another blast. It's unclear whether the words are some kind of incantation, or purely decorative.
She shoots into the air, and has a moment's trouble controlling her speed, but after that it's like she was born to fly, and she's navigating quite handily, maintaining line of sight and aim while declining to present a still target.
"Fuck you! Fuck you! Fuck you!"
It's probably an incantation.
She didn't recognize Jessica's house, since she's never been there, so she isn't wondering where Lexi is.