Maestro found this book in [[93_20211002 Meeting Maugwraithe - and I get to Level 8]] in the [[Bibliotheca Empirica]]. ## Key takeaways - Demons can never be truly killed outside the Abyss. - Their forms may be wildly different from each other. They have some common resistances, but individuals also may have unexpected resistances. Beware-- test first. - They don't normally plan. They just attack. - They don't have rigid castes; the strongest of them command. - Some of them can summon other demons. - Something is blocking demons from going into the Prime Material Plane (otherwise the plane would be overrun with them). - How to kill them: - Beware of their natural resistances. - Beware of demons summoning other demons and bullying the summoned demons to work for them. - Kill them in the Abyss. When they're killed here, they can take 99 years to come back. - vrocks - Large demons that can fly - They're like a demonic air force. They can also carry passengers. - Intelligent, but not significantly so. - Flyby: - How do we kill them? Prevent them from flying and get them on the ground. - Standard demon immunities. Variable resistance, like other demons. They have a random resistance.