Lolita Goth's mystery
I have spent most of this week playing The Sims 3, especially with the Goth family in Sunset Valley. I made Gunther Goth become friends with Lolita Goth, who is buried in the family cemetery, so I could resurrect her. I got the “Oh My Ghost!” opportunity, brought her tombstone to the lab and she became a playable ghost.
When I opened her inventory, I found her tombstone and a book titled “A Wall Between Us”. I thought it was an Easter egg since this book cannot be bought in a library and is sold for §2,009 (the year the game was released).
I googled and found a list of all books that exist in game on The Sims Wiki (https://sims.fandom.com/wiki/List_of_books_in_The_Sims_3…) and this specific book is only added to the game with the World Adventures expansion pack.
However, I only had Generations, Pets, Seasons and University Life expansion packs installed when I resurrected Lolita and only recently I added Late Night to my game. Someone have any idea on how this book was added to her inventory?