Green-Flag. And then read. :) It is better for you to use full-screen. Arrow keys or swipe the screen to scroll the page. Or by using mouse-scroll (and full-screen). This is mobile-friendly.
Here, this is more concise way to put a story into number of costumes as pages in a single sprite. If you had changed the size of the text, you may adapt the "adjustment" variable as well to avoid text spacing between pages. And I still hope there's an option to automatically justify the text in Scratch 3 editor. -_-), A heavy reading, read with caution. Full version: https://toleratedindividuality.files.wordpress.com/2015/02/i-am-a-cat.pdf I am a cat; 吾輩は猫である Wagahai-wa neko-de aru. The picture of the cover is originally from: https://www.thoughtco.com/the-black-cat-themes-and-symbols-738847