Synopsis by Hal Erickson
In the conclusion of a two-part story, Jessica (Angela Lansbury) is still in Ireland, investigating the mysterious (and deadly) goings-on at ancient Ballynook Castle. In her efforts to prove that a legendary ghost was not responsible for the death of a kitchen worker, Jessica had become trapped in the castle's dank and gloomy dungeon. Meanwhile, the genuine culprits, who may or may not be involved in an intricate antique-smuggling scheme, remain at large. Rod Taylor and Fionnula Flanagan, both of whom had appeared in previous episodes filmed in Ireland, show up here in different roles.