Halloween really spooks some Adventists (no fun intended):
"Seventh-day Adventists recognize that spiritualism has many faces. Some of them may seem harmless and even fun. Nevertheless, they lead children and adults away from God's truth, and can become stepping stones to further entanglement with the occult. Therefore, we do not recommend participation in the celebrations and festivities in connection with Halloween."
Gerhard Pfandl, Ph.D.
Biblical Research Institute