I Bought a Book I Shouldn't Have Bought at a Used Bookstall

It all started when I found a tattered book at a used bookstall for five yuan. The book is called "Spectrum of Strange Weapons". It has no author and no publishing information. The paper is so yellow that it looks like it was dug out of a coffin. Several ancient artifacts are recorded in it. The human chrysalis, the spinal cord, the eye socket pot, the guest in the belly, the gum box... Each of them is made of living people, and each one is still growing. At that time, I thought this was a fantasy novel written by ancient people, so I took a few pages and posted them online. Everyone in the comment section was hahaha at the beginning, saying that this book was an ancient version of the Dark Cookbook. Until the third article, someone sent a photo. There is a dressing box in his attic that is exactly the same as the one in my book. It is made of mahogany and covered with silver, and the copper buckle is in the shape of a bat. In the photo, the box is open. There are two rows of pink gums inside, and the gums are still wet. Then that person never responded to my private messages.