The Art Show Attacks!: A Branches Book (Eerie Elementary #9)

Eerie Elementary is having an art show. Sam is working on his project for the show when SUDDENLY his clay comes alive! Then Sam and his friends start seeing signs of Orson Eerie everywhere. Orson even leads them to a new, secret room in the school. What is the creepy mad scientist up to this time? Sam needs to find out FAST!