Petronella Barker as Miss Parrot
Episodes 2
The Affair of the Avalanche Bicycle and Tire Co.
October 4, 1971
• 50m
1x3
Horace Dorrington solves the mystery of a case of sabotage on a bicycle track.
Read MoreThe Case of the Mirror of Portugal
October 25, 1971
• 50m
1x6
Horace Dorrington clears up the mystery of the theft of a valuable diamond.
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