'Zen Goh and his friends Matilda Lim and Declan Tan are enjoying their first Halloween party - until the doorbell rings. When they answer, nobody is there. All they find is a mysterious pumpkin with blood trickling from the mouth carved into its side. Suddenly, they discover that they are playing a terrifying game of trick-or-treat where somebody has changed the rules: Now it's Trick or Treat - Or Die' (Source: back cover).