Divinity: Original Sin - Enhanced Edition

At a certain point in the game, you will meet Cassandra in the Phantom Forest. Talking with her should update the quest "A Forge of Souls".

She asks for a Stasis Fern, which is linked to other achievements. But for the sake of this "To hell with the devil" you don't technically need it.

Instead, you need to find your way into the temple of the dead. Located between the entrance to the phantom forest and Cassandra's location. To get inside, sneak one character with a teleport stone past the sentinels to the middle. There is a platform that won't teleport anything living. So throw the stone on and pull the lever. Using the other stone to get your party into the temple.

Explore and kill anything that stands in your way. Eventually you'll come to a wall which will disappear if your perception is high enough. You'll find Cassandra's grave. Dig up the bones. The next step is to make a hard save.

Once saved, burn the bones, Cassandra is now vulnerable.

Head back and talk to her, this will trigger the fight, once you kill her, the achievement will pop.

NOTE: Wondering why I told you to save before burning the bones? The following achievements are also linked to this section.



This achievement requires you to burn the bones and speak to Cassandra, once they are burnt, you will not have the dialogue option to give her the fern. Thus locking out the "Wicked Young Man" achievement.