The Armchair Detective In London

"The phantom of the theatre?" Old Tom discovers an old haunt of his, the Regency Theatre in London, is apparently being haunted. A trip to the capital is in order. Trench is reunited with Sally-Anne - could she be a rival to Debsy? Dramatic questions then seek the limelight: What are the strange noises that plague the old theatre? Where are the mumbled conversations coming from? Is the star actress really being watched? And what is the sinister significance of the trapdoor? Old Tom starts to suspect that the answers may lie 'Underground'...