I need a good হ্যালোইন costume for a 13 বছর old girl?

Depends what your going for, Classic, new.Im going as Bellatrix Lestrange from Harry Potter

/checks your profile

Hmm, আপনি obviously like Percy Jackson, so why don't আপনি go as Annabeth? :D They have camp half-blood shirts... And if আপনি can't find one they seem easy enough to make.

its always fun to be a princess agasin maybe spice it up going vamp princess অথবা maybe put ears and a tail too:)or maybe medusa অথবা chiron i প্রণয় greek mythology pick your fav. character:)

Use a Vampire costume

be a cute fairy with big wings

if u like the hunger games go as katniss. if not just wear a plain শীর্ষ with costume written on it!;-)

OHMIGAWD, darling, আপনি would look FABOO in this!!! :D

Witch costume,or demon costume...MAKE YOUR CHOISE!!! :DD

try cosplay 4 জীবন্ত like lucky star

Well, I went as a witch when I was 13.