Getting started on a Mystery/Transcript

[open Int. Mystery Mobile where Christopher is seen talking to Madison and Tracy about a mystery in a haunted mansion]

Christopher: so anyway I've got a friend who's a professor he's known for a new magic spell.

Tracy: I heard that his mansion is haunted by...

Christopher: the ghost bunch!

[the Mystery Mobile is seen parked at Professor Wain's house as the three are inside already]