Meanwhile, Frisk and Anti were still trapped in the void.

Anti had spent so long trying to find a way out. Frisk, on the other hand, felt... strange.

Every now and then, a wave of pain would flow over them.

They didn't understand what was happening, but every time it happen, it got worse and worse, and more and more frequent.

After countless times, they finally decided to speak up.

"Anti...?"

Anti looked up from her endless coding. "Yes, Frisk?"

"I.... I think something's wrong with me."

"... oh...? What do you mean...?"

"I....I keep on feeling pain for no reason..."

Anti hesitated.  This concept was both familiar and unfamiliar to her at the same time.

"... is it constant?"

"No.  It comes and goes."

"How long does it last whenever it comes?"

"I'm...not sure, exactly."

"What else can you tell me?"

"The more it happens, the shorter amount of time it takes for it to come back and the longer it lasts."

"I...see..."

A look of concern flashed on Anti's face for a moment.  She quickly shook it off.  "I...I'm sure it's nothing." she lied.  "Hopefully I can get you out of here soon.  Maybe then it will stop."

Frisk nodded in agreement.

"Hopefully."

... the moment the words left their mouth, pain washed over them once again, and Anti faded and disappeared from view.