 A man resembling Captain Black (voiced by Donald Gray) has been sighted in Europe and Verdain is sure that he will make an appearance at the event.During the pre-reception cocktail party, Gabrielle inadvertently reveals herself to be a Mysteron agent when she claims to have flown to Monte Carlo from Paris when the latter was fog-bound.Before Scarlet can challenge her, Black, who has stationed himself outside the hotel, shoots Verdain through an open window with a tranquilliser gun.