Once you have finally destroyed all 5 Evil Tomes, head to Darktown and there will be an entrance to The Evil Pits.Make your way down and you will come to the Fell Grimoire.What you want to do here is up to you, but if you read the book and then agree to its deal, you will receive two bonus attribute points.Once you are done with the book, Xebenkeck will attack with a whole crap load of friends. Head to the far side and you will find an opening labeled “Cave” which is not marked on the map.Enter there and follow the corridor to the next room and destroy the book in the left corner. The fifth and final tome you need to destroy is in the Bone Pits. Head there and after a minor battle with a dragon and some more abominations, the next book will need to be destroyed. Next head to the Wounded Coast where there will be a cave called the “Dank Cave”. Follow the passage through to the end and you will find the next tome in a room that has an almost unending amount of shades, rage demons and corpses. Near the rear of the left path, there is a cave that is called the “recently opened passage” that will lead to a whole load of trouble. 4 abominations and a she-demon will pop out to say hi when you destroy it.The second can be found In the Viscounts house, towards the back room, sitting on a bench to the left.The third will be in Sundermount. The first Evil tome can be found in the chantry at the top of the stairs to the right. For this achievement, you need to find the 5 Evil Tomes that are scattered around Kirkwall and choose to destroy them.