probably late to need…. So, my thoughts. spells known: this is a specific term covered in each class under spell casting and listed in the class table. So RAW “knowing” doesn’t equal “spells known”. 2nd, when casting a ritual from your book it isn’t “prepared”. Again, this is a specific game term referring to clerics, druids, and wizards who must prepare spells daily from their list of available spells. Seems like you can’t prepare something if you don’t have spell slots but that’s just me. So for me, RAW it doesn’t work. Does it break anything? Probably not unless your goal is to spam out ritual spells to the whole party and engage in shenanigans. I’m confused on why you need scrolls of your rituals at all when the ritual book is essentially your reusable scroll already? 2 cents