The Four Horsemen complete series by Laura Thalassa. It’s apocalyptic smut and honestly it’s really good. Each book is different enough that it doesn’t feel too predictable or repetitive. I didn’t really like the first book, but I cried like a baby during the last one. Books are like new, no cracks in the spine, only read through once. DM if you’d like to purchase one/multiple but not the whole set! Thanks💗🌞