[Radio Times] “Great limestone caverns, a sinister professor, a suspect detective, waters that
turn men into stone—all these have been used by the author, H. R. Jeans, to make an unusual
mystery drama.” Described as “A Tale of Death in the Colnehead Caverns.”
Various.
Various.
None.
February 10, 1938“Dr. Cobold”
James R. Gregson (producer), H. R. Jeans (scriptwriter).
Kitty Brook (Mrs. Hirst), E. A. Hawtin (Captain Francis), Joe Illingworth
(Mr. Hirst), E. Parsons (Dr. Cobold), Peggy Ryalls (Barbara Newlands), William
A. Wightman (Jack Newlands).
[
December 11, 1942“Dr. Cobold”
[
“…Mad doctor lures victims into cavern where they meet their
deaths—until he suffers the same fate…”]
Andrew Allan (producer).
[
June 5, 1944“Dr. Cobold”
Gerald Rowan (producer).