that's not a page skip, page 13 is there! this book is intended to be read in 2-page format like a printed recipe book, and the blank pages are to signify breaks for when the topic changes as in some printed books - going breathlessly from one recipe to the next without breaks would make everything blur together as if i'd squished everything together, and it'd be harder to visually distinguish everything. it's a practise seen in recipe print books, even if nowadays more of them are inclined to put adverts where the blanks are (I did consider putting jokey in-universe ads but was unable to in time for the deadline)