You only truly know what something is when you know how it was Created
Dear Young Wanderer, if you do chance upon this book somewhere you should not be, then I recommend you to put this down and forget you ever set eyes on it. Despite how great the library might seem, it also has its forbidden secrets. I myself have dedicated my life to discover the creation of the library, and the library has punished me accordingly. This journal is the sum of my discoveries, although I am indeed surprised that the library has not destroyed it already. I beg you to not go any further, or else you will have to suffer the same punishment that I suffered. But, if you insist, then go ahead. Put this information to good use, whatever your purpose might be.
There was once, a long time ago, I was part of the organization that specialized in the containment of anomalies. Part of the O5 Council, as they called it. I was supposedly one of the 13 heads of the all powerful Foundation. Yet, I knew that I did not deserve it. I was greedy, I admit that, and I wanted all the knowledge the universe had to offer. Know all that was knowable. The Foundation fed me all kinds of drugs and pills to preserve my life, so deep in my heart I knew that I should not be cooped up in an Organization that barely needed my help. So in the dead of night, I fled and joined the Wanderer's Library.
It was pure bliss, surrounded my all those tomes and volumes and my disposal. For the first few hundred years, there was all that I needed. I always thought that the library existed for our sake, for our benefit. That was until I had read finish all that I could read. I began to question the very nature of the place I was in, the Serpent, and the books this place held within its walls. I began scouring the shelves for an answer, for years. And that was when I realized what book the library did not have; what the library was and why did it even exist? And so I went to the forbidden areas, the very back of the bookshelf, to where books would be obscured and never to be seen again. And there I found more knowledge than I thought ever existed.
The library was originally built by the Foundation. Not one but the collection of the Foundation's alternate selves. They meant to create an endless site where information and containment procedures of anomalies all across the multiverse could be kept safely. Moreover, they wanted to use this site to store an endless amount of information for other realities that just recovered from a mass annihilation event to rebuild themselves. They planned to use a dark ritual to transport the library into a pocket dimension accessible to themselves only. Upon further investigation, I discovered that the dark ritual would also spark the creation of entities, named the Librarians, that could protect the library from intruders by a gruesome transformation that would turn intruders into another Librarian. The Foundation thought that it would be a Win-Win situation, it seemed.
The ritual was only partly successful, and first it transformed the library into the pocket dimension itself. Secondly it made the librarians become hostile to even the Foundations, which was why they suffered massive casualties. Finally, a new entity ruled over the library: The Serpent. The project was shut down, and the Ways into the library was barricaded and sealed.
Jump forward to a few years later, the Black Queen was the first to find the library after so many years. The Black Queen's actual name was Alison Chao from old records, and the collection of hers from different realities were the first to inhabit the library. Records of how the Black Queen managed to tame the resident librarians have been lost to time, but they indicate that she struck a deal with the Serpent. She was also the first to start gathering new members to make the Serpent's Hand. That was the time when the library first started consuming and devouring other realities.
And a few hundred years later, here we are. And that begs the question, what does the library want of us?
The library is a place of infinite knowledge. But what it does not have is what humans have. Emotions. Feelings. Moods. You name it. The library lures humans in by offering its infinite knowledge. But in the process it sucks out all that you have to offer. Happiness. Inspiration. Determination. Resilience. Even your sanity. And that is its fuel to eat up more realities. You are slaves. Laborers. We all are. And it gives you an infinite amount of knowledge that you would never need. Funny that there are no books in the library teaching you how to destroy it. There is no way to stop it. I have seen many try but fail. There is no stopping the library. If you are a slave of knowledge then you are a slave of the library. And the library will not stop enslaving more people.
I have no idea what you will do with this information, nor do I want to know. I just hope that whatever you do with this information, you uphold your decision. I wish I had more information on the library's strengths and weaknesses. But I have written my part of the story. The rest of it is for you and possibly hundreds more to finish. Choose your story plot wisely, or your fate might be written on its very pages. Maybe the library will keep your legendary tale tucked away in the forbidden areas, to be found by someone else.
Good Luck.