Borrowed & lost quest something i figured out

[juggalotus]

*spoilers* you can just turnt the book in but if you use it as a item it has a inscription with various conditions a human can come down with(jaundice,Cyanosis etc) well there are 5 colored thorn options to chose only took me like 2 min to figure it outthe order is blue red indigo yellow silver, after doing this u get some good int stat boost if i remember right an u cn stil turnt he book in to complete the quest