The former owner of the tablet, the Lord, seemed to have used is quite a lot as a portable notebook. The information about Dark Believer was indeed very meticulous, there was a complete edition of both illustrations and texts about the Dark Believer's prayer conversion spell; a rune mantra that could steal the divine power of other gods and make superficial changes on it to transform into the source of the dark spells; some basic knowledge like blood ritual rituals of sensing the power of darkness from the unseen world and then continued to pierce into the depth of the brutal and tyrannical force. Not only that, there were also some of the Lord's personal insights into the profession of the Dark Believers.
All of these actually had a beautifully crafted animation too.
