Uh, how is Halloween a haram? I looked into it a little bit and it seems that technically it isn't a haram, unless you're strict on yourself then sure. Some halloween parties have alcohol, which is a haram. Now, I don't practice Islam, but have various friends who do. It's an interesting religion if I do say so myself
It’s my belief, and my parents don’t like how Halloween is about scary stuff, and we are strict about the devil, and so anything involving monsters and ghosts etc, she takes as haram.