This one has some of the best Peter Thomas music. This is especially true during the opening titles in which a Screaming Jay Hawkins sound-a-like keeps shouting, “Blackwood Castle! It’s cold!” The story doesn’t quite live up to the music. The owner of the titular castle is dead and various people from his past show up only to be killed by a dog with big fangs. There’s an inheritance, hidden jewels, yadda, yadda. I did enjoying seeing Sir John and Miss Finley taking the lead as the main investigators.