Horrible Terrors (UndertalexReader)

She's been here too long, drifting through a space devoid of time and reason. Speaking to ghosts long gone and echoes of her own voice, a lesser being would have gone mad. But she's not a lesser being, no matter what her old allies once said. Now they're gone and only she remains. Whether they died off, abandoned the cause, found a way to escape, or gave up, it doesn't matter. She is still here. She still lives. She still perseveres. But does any of that matter with such dwindling hope? Adrift in a sea of pitch, the silence is deafening, the cold biting, no other compassionate being in sight. Trapped for all time.
But wait.
Is that...a light?

(This is also posted on my AO3)