Actually I have sent a ticket for this bug a few month ago, but I dont understand why they do not resolve this issue. In the NPC there is a similar name "[Holist] Book of Demonic Protection of Black", It is missing word "Greater", I have tried to read but it fail. Have anyone got same issue?
Typo error. Try to search for the Book of Demonic Healing of Blood The Sky in resource, there are 2 books with same name, get attention in the line "Complete Cheng 10 (11) ...: one book is Demonic Healing of Blood The Sky, the other book is Greater Demonic Protection of Black.