Forbidden Knowledge - p. 2 Dragon Age II Guide
Last update: 11 May 2016
Step 3: Finding the third book
To find the third book you have to choose from the map of the world localization [Bone Pit]. After reaching the place head east, pass the camp of miners on your way #1 (M31, 3). The aim is to reach the entrance to the cave (M31, 9), leading to localization [Bone Pit - Rotten Cave] #2 (M58, 1).
Right away head towards the place where somebody hid sinister book #1 (M58, 2). The list of possible choices will not change, so you can destroy it, read it or take without reading. Prepare to fight with new monsters. First it is worth eliminating the demon of desire #2 and then corpses as well as archers' skeletons.
Step 4: Finding the fourth book
To finding the fourth book, choose from the map of the world a travel to localization [Wounded Coast]. After reaching the place, prepare to eliminate a group of pirates, who can attack you #1. The situation will repeat itself further within localization, but I can't give you exact bearings as it depends on your previous visits on the shore. Choose the path leading to southern part of the localization #2.
Turn north when it is possible, after few moments you will reach the entrance to the caves (M28, 15), leading to localization [Wounded Coast - Musty Cave] #1 (M58, 3). Right after getting inside the cave eliminate a group of Giant Spiders #2, which shouldn't be too difficult.
Head north. After reaching the biggest room in the caves it is advisable to save the game, because you will have to fight a dragon #1 (M58, 4). During the fight you should focus on stopping the beast from knocking your teammates down. Take care of their health condition too because taking the energy from the dragon will take some time. After winning the battle get interested in six files of treasures #2 (M58, 5), and you will find many valuable objects.
You can look for the fourth sinister book #1 (M58, 6), traditionally you can destroy it, read it or take without reading. If you do it, in the cave you will come across living dead #2, who will be accompanied by the filthy ones and corpses.
Step 5: Finding the fifth book
You can find the fifth book if during the day you go to the localization [Hightown - Viscount's Keep]. Start exploring the eastern rooms in the citadel. Click on sinister book #1 (M9, 9), choosing to destroy it, keep it or take without reading. Now start attacking secret nightmare, which will appear in the room #2, preventing it from casting powerful spells. After eliminating the nightmare deal with the filthy ones, which will appear in the room. Unfortunately, you can only rely on yourself because during the fight the doors leading to the main room will be closed.
If you have destroyed all books till now, the game will allow you to move to Step 6, so you can look for the Grimoire of Evil. If you destroyed at least one book, now the quest will end.