Vintage Enchanted World 21 book set

In good condition with the exception of the ghost book I've added photos of it. I actually didn't realize it was like this until I was taking pictures.. I am definitely not a book expert and I was going to try to fix it.. but I just don't know what I'm doing. As shown in the photos .... it needs to be glued back down.. it is in 2 pieces.. no other pages are loose. Also as shown in pictures there are some library stickers from the previous owner I think a total of four or five books I tried to take one off and I didn't want to rip the book. I took pictures of all of the outside spine where the label is as these books are 40 years old there is a discoloring probably from sunlight on some.. as you can see in the photos quite honestly this is a beautiful set especially for being as old as it is. it belong to one family and only a few books were looked at more than a few times all of the others were rarely ever completely looked at. I wanted to be as thorough as possible in my description if you have any questions please message me.

All of my items come from my home and or resale-consignment shops. If the listing is for clothing ( they are most likely mine because I do not like selling clothing) they will be washed prior shipping to buyer . My home is a pet friendly home ( cats and a dog) although I try to lint brush and get any animal fur off I’m sure I miss some so if your allergic or just don’t like pet hair please don’t purchase. I also burn candles and incenses. I strive to make all my customers happy if a problem arises please contact me!