Hey, just wanted to report an issue I discovered by accident. I was playing the mod and totally forgot Patchouli was required for the Actually Additions Manual. That, however, isn't the "issue" I speak of, as that's completely understandable as it is intended behavior; rather, it's the fact that the book is still obtainable without it, and those who may not be as savvy as I when it comes to modded Minecraft will ultimately experience a crash if they try opening the book. Thanks.

I'll go add a fallback message in case it's not installed

Fixed in baf4f0e