Possible snippet of an important part of the World is Grey arc
A week.
If Raven had counted the days correctly she had been here for a week. But she couldn't be completely sure. It was getting harder for her to tell what was a dream and what was reality, and it was that thought that terrified her the most.
She didn't know where she was most of the time. There were no windows, only doors leading down dark dusty hallways that she didn't recognise.
Sometimes she wake up in an unknown bedroom, or one of the many identical rooms full of dusty bookshelves. At one point she picked up one of the books to read, it was written in ancient Terran and from the little that she was able to translate from her lessons she chose to never pick up one of the books again.
But it didn't scare her as much as the walls.
Sometimes when she was awake she would come across sentences scrawled in scarlet written in a mixture of English, Japanese, Mercurian and many other languages that she recognised and could read.
I don't know what I'm doing/Where am I/ Why can't I leave/don't trust the bogeyman/he's a traitor kill him/I'm not awake am I/Why can't I remember where I'm going/None of this is real/Help me/I'm scared…
Her heart raced in fear the first time she realised that her own hands were covered in the same scarlet. Her nails were ripped and her dress was torn. She didn't remember writing any of those words nor what happened to her hands and clothing.
And of course there was the voice.
"You can't block me out little duckling" the sultry voice whispered in her ear regardless of how hard she pressed her hands against her eyes as she squeezed her eyes shut.
She didn't know why but a part of her knew that it would all be over if she opened her eyes.
"There is no escape little one. I'm a part of you now and eventually you will give in. Together we will make such delicious chaos," it sang trying to soothe her frazzled nerves as she sobbed and attempted to run from the shadows that followed her.