We were supposed to do it for my son's 5th bday during the day, but our son wasn't feeling well so I went to see about a refund, they mentioned they had a halowe'en themed one that night. I took my son and he LOVED it!! The goal was to save the Magic Kingdom before the bad guys took all the hallowe'en candy.. We went all around solving clues and then got priority seating for the hallowe'en parade. It's probably a bit different then if you go to the one in the morning, but generally it's the same. At the end, a different character meets the grooup and congratulates them a on ob well done, for us it Mulan and Mushu. My son was thrilled!! Hopefully we can do it again, this year! Your girls would be the perfect age!