This time Shaggy and Scooby-Doo are alone while their friends are trying to find out any clue about who is haunting the house. While they are in the backyard, they will be trapped by strange monsters that are real and not someone pretending to be a creature, all of them summoned by the mysterious necromancer that is behind all this scary stories about the house. If you don’t watch for them, they will be carried away by the monsters to their master and then nobody knows what he can do with them, maybe turning into his new slaves of flesh and blood. To avoid it, you must tell them which magic potion to use, the ones they managed to get thinking it was some kind of special juice to drink later. They will be useful to get rid of the monsters, but you must be quick to throw it at them.