Before Entering

When a young girl no-clips out of reality and stumbles into the backrooms, she has mostly the same experience as everybody else that has been into them. But, everything goes downhill after she goes on a rescue mission to help somebody's friend. Learn the tale about how she became entity 35, aka Lucy.

EDIT; just found out Lucy isn't on the wiki-dot anymore even tho she was one of my favorite entities ;-; idk who the original writer of her was but I'd like to think this book is cannon, it would answer a lot and I would like her story to finally come full circle after he entry was purged.