The younger Bina turns around.

"You're one of the others, aren't you. From the wall," she asks after a moment.

"I'm B-Twelve, yes," the older Bina says. She looks more worn than the Bina from the frozen factory, too. "How's she here?" with a nod towards Ant.

"...Ey, how's ey here. And I don't know. Ey climbed with me away from the factory. I thought that'd mean ey'd wake up in the laundromat with me," Bina says back. 

She's not sure she's supposed to know Ant's pronouns, but the words just past hearing aren't exactly subtle here.

"I don't know either," Ant shrugs. "I just am. And yeah. Ey. Not she."

She recognizes the tired, harried look on her - other self's? - face.

"You're not someone I'll become, are you?"

Twelve shakes her head. "No. I already tried all this. It's your turn, now. We don't have unlimited time, but - you should be able to ask a few questions."

"-How much does time-travel break anything?" Ant asks under eir breath.

"Paradox is what happens when you change a timeline to the point where you couldn't have made the change given the new timeline - stable loops don't trigger it. Small amounts can cause headaches, seizures, and unconsciousness in those affected. I saw a large amount, once. The world... Shattered, around it. Events happened out of order."

"-Shit. That's- So. Badly."

"There's machines that can off-load some of it. You'll find them, eventually."

"What happened? To you and the others of us?"

"I asked that one too. I tried to find a better answer for you then the one that Eleven gave me, but I didn't. Sorry. We don't know."

"The way that I can reach back and interact with your time-line stops before you get to a certain point, just as Eleven's ability to interact with my time-line stopped at almost the same point. I'm pretty sure it's when we go back to try to stop Josephine from activating the observation device in the first place."

"Nobody knows what happens when we do that, but we all keep messing it up somehow and causing a time-loop."

"What would you fix? And uh if I mess up, do I have to help B-Fourteen then?"

"You already fixed it. Jenn didn't get out of the basement in my timeline."

"And no. You're probably the last viable loop. Um, it's a lot of math, but a simplified version of what is happening is that our time-line is looping, but the corruption in this area of space-time isn't. The damage just keeps getting worse even though time is being rewound."

"For the first several times we went through this, the Corpse was the size of a regular teenager. Every time we loop, the damage is more extensive, the cracks are more frequent and the Botfly is more… developed."

"-Botfly?"

"It's that thing in the courtyard, isn't it. It's not a botfly, not really. It's a lot of things. But a botfly is the closest to what it is."

"-So. We need to figure out how to- kill it?" (Does ey even realise ey's talking in plurals? Probably not. It's always been plurals for em. Em and Ira. Em and Bina?)

Quietly: "I think so." Then, to Twelve: "The window in Josephine's office. 'What kind of a maggot grows in the corpse of a day'. What's up with that?"

And they're there, in the memory, jarring and glitching.

"...I don't know. There shouldn't be writing there - it's a damaged memory, like when we go through a crack and change something, but there shouldn't be a crack there. There hasn't been one before. It must be new, or unique to your loop? I don't know. I don't know! I'm sorry."

"Well. Great. That's just bloody fantastic."

She's back to being older Bina, now.

"It's- It feels like it- it has to be important right? If it's there?"

"Maybe. It must be about the Botfly, whoever wrote it..."

"What does the Botfly - no, we're out of time, aren't we? I'm waking up. My knees aren't very happy..."

Ant looks, perhaps, a little sad. "I- Good luck? Whatever Ira's doing--" Ey pauses, breathes. "Stop her. I love her. But this--this isn't right."

"...Yeah." She hugs Ant, impulsively, but still telegraphing it. "Well, here I go, I suppose."