5th Vanquisher's Book of Knowledge not dropping

Hi,

Following this guide https://www.poe2wiki.net/wiki/Vanquisher%27s_Book_of_Knowledge I have done the below on multiple occasions:

- Slaying a Map Boss in an area level 79+ Map that has at least 6 Modifiers.
- Slaying a Map Boss in an area level 80+ Map that has at least 6 Modifiers.
- Slaying a Anomaly Map Boss in an area level 79+ Map that has at least 6 Modifiers.
- Slaying a Citadel Map Boss in an area level 79+ Map that has at least 6 Modifiers.
- Completing the Pinnacle of Flame Quest.

But still I have only 8/10 Map Boss Skill Points.

How can I get the last book?

Tx

Do you still have the pinnacle of flame quest in your quest tracker?

Thanks for your reply.

No I don't have that quest anymore, I have done all the quests.

I just re-did level 80 bosses in Citadel and Anomalies as well with T15 waystones with at least 6 modifiers.

I just did a maxed out T16 waystone on a cleansed map with powerful map boss and I have 4x the +1 Map Boss Difficulty and Organised Forces (more +1 on map).

No luck so far...