Back at the house, there has been another scare; a mysterious symbol like a stylised letter B has been drawn in chalk on one of the library windows. Campion and Oates suspect it is a sign used by tramps to communicate amongst themselves.
Back at their home, they encountered another scare: a strange symbol, resembling a stylized letter B, had been drawn in chalk on one of the library windows. Campion and Oates believe this could be a signal used by homeless individuals to communicate with each other.