Mysterious Letter Written in Blood

Air Date: March 25, 1978

Air Date: March 18, 1978

Air Date: March 11, 1978

Air Date: February 25, 1978

Air Date: February 18, 1978

Air Date: February 4, 1978

Air Date: January 28, 1978

Air Date: January 14, 1978

Air Date: January 7, 1978

Air Date: December 31, 1977

Air Date: December 24, 1977

Air Date: December 17, 1977

Air Date: December 10, 1977

Air Date: December 3, 1977

Air Date: November 26, 1977

Air Date: November 19, 1977

Air Date: November 12, 1977

Air Date: November 5, 1977

Air Date: October 29, 1977

Air Date: October 22, 1977

Air Date: October 15, 1977

Air Date: October 8, 1977

Air Date: October 1, 1977

Air Date: September 24, 1977

Air Date: September 17, 1977

Air Date: September 10, 1977

Air Date: September 10, 1977

Air Date: September 3, 1977

Air Date: August 27, 1977

Air Date: August 20, 1977

Air Date: August 6, 1977

Air Date: July 30, 1977

Air Date: July 23, 1977

Air Date: July 16, 1977

Air Date: July 9, 1977

Air Date: July 2, 1977

Air Date: June 25, 1977

Air Date: June 18, 1977

Air Date: June 11, 1977