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

In the ninth book of this spooky series, Eerie Elementary is having an art show. Sam is working on his project for the show when suddenly the clay he's working with comes ALIVE! Then Sam and his friends start seeing signs of mad scientist Orson Eerie everywhere. First Orson's face mysteriously appears on a painting, then he leads them to a new, secret room in the school. What is Orson up to this time? Is he trying to spread his creepy power outside school grounds yet again? Sam and his friends need to act FAST!