In howls moving castle, why is madame sulime evil?

this may help

Explanation: She is the King's Royal Sorceress and former teacher of Howl. Suliman admitted Howl was a gifted student and hoped one day he would replace her. But he never finished his training as his heart was consumed by Calcifer.

She starts recruiting wizards and witches for the King to fight the war that was taking place due to the prince of the neighboring kingdom gone missing. However, the Witch of the Waste was consumed by a demon of greed years ago and Howl's was consumed by Calcifer. She refused to turn a blind eye on either and tricks the Witch of the Waste to the castle and removes her powers.

two factors or characteristics of a chapter that might make it difficult to read would be words i don't understand, or if i don't fully understand what's going on in the chapter. strategies i can use to get through the difficult material would be a dictionary, and re-reading previous chapters to get a better grasp of what the author is trying to say.