“I found that letter in my desk. I thought something awful would happen if I didn’t do as it said.” – Anna

 “I don’t get why everyone is so obsessed with believing that chain letter. What happened to all the brains in this school?” – Charles

 A chain letter is causing chaos in Sacred Hearts Primary School. The letter threatens misfortune on anyone who doesn’t pass it on to someone else. Everyone in school is scared and panicking that they will be the last to get the letter.

 After Emilia ignores the threat, she slips and sprains her ankle in a freak incident. Charles then suggests that they investigate the origin of the letter. Someone seems to be purposely trying to spook the school! But the more they dig, the more complicated the case becomes... What is the truth behind it all?