Season 18 Apr 1969 – 13 May 1969 · 6 episodes1Traitors in High Places8 Apr 19692A Place of Great Evil15 Apr 19693The Haunted Pavilion22 Apr 19694A Festival of Death29 Apr 19695The Day of the Scavengers6 May 19696The Curse of the Lacquer Screen13 May 1969