In these cases we can follow Lucas in the 1920s and the early 1930s, before he met Brook.

• Case 1 - The Mansion: 1926. On Halloween night, a spooky call comes into the station. It’s supposedly a footman from a dilapidated mansion, asking for help because his master was attacked by a ghost. Is it just a prank call, or did something really happen? And if it did, could it have been something supernatural?