Roe, Sally and Arthur recall a memory in which they went into a creepy, supposedly haunted house. Lu, Frank and Sebastian are convinced Roe hired them to investigate that house. Katie, a new reporter, convinces Sally to write a story on the house. And Aida recalls rumours about kids making a creepy discovery about the house in the 1980s. Guess what... they're true.
When Neville and Florence go on their honeymoon in Stratford Upon-Avon, Neville is thrilled to see his old friend, Frank Hathaway. However they all meet whilst stumbling upon a crime scene. And none of them can help but solve his murder.
On a freezing cold Christmas Eve. Frank and Lu receive a visit from unexpected guests. A little Christmas present for all.