GFFs Rochelle, Robecca, and Venus begin to settle in at Monster High and are having a fangtastic time getting involved in the student body. Rochelle is tutoring the trolls, Robecca is blasting onto the Skulltimate Roller Maze team, and Venus is starting a compost pile with Lagoona Blue! The ghoulfriends are even recruited to help Toralei and Cleo plan the Hex Factor Talent Show. But during Mr. Mummy's Catacombing class, the ghouls find a Doll of Doom that hints at a new threat to the school. And when white cats start showing up around the Creepateria - a bad omen for monsters! - the GFFs begin to wonder if their fun is over. Is Toralei playing pranks? Or is something more sinister at work in the halls of Monster High?