Original: Edmund makes cruel and hurtful comments to Lucy when she first finds the entrance to Narnia through the wardrobe, and is the second of the Pevensie children to go to Narnia, after following Lucy to tease her.
Simplified: Edmund talks cruely to Lucy when she first finds the entrance to Narnia through a wardrobe, and is the second of the Pevensie children to go to Narnia, after following Lucy so he could tease her.