I was challenged with this question twice in one week by people who were quite serious and not affiliated with any church. After I got over my initial shock, I realized it was a question worth an answer, and the question might be something other churches may be asked.
Following is my answer in video format and the script for it follows. Please consider this as an example of how people may be spiritually searching in ways we wouldn't think about and how Halloween can give us an opportunity to share the one Person who truly came back from the dead, not as a zombie, but our incredibly, eternally ALIVE, Lord Jesus.