Young siblings Danny and Wendy once lived an ordinary life on a ranch, but now they were stranded in a world of magic and ghosts--Alhallowen. The only person they can rely on was Pumpkin Witch Nana, who promised to help the siblings find a way home if they help her repay her debt. They set out to a nearby town to sell potions, only to somehow end up lost in an abandoned mansion. While finding their way out, Danny and Wendy realized this place was not as abandoned as they had thought...