CHAPTER

  1. [Sanford Quest, Criminologist]
  2. [The Apartment-House Mystery]
  3. [The Hidden Hands]
  4. [The Pocket Wireless]
  5. [An Old Grudge]
  6. [On the Rack]
  7. [The Unseen Terror]
  8. [The House of Mystery]
  9. [The Inherited Sin]
  10. [Lost in London]
  11. [The Ship of Horror]
  12. [A Desert Vengeance]
  13. [’Neath Iron Wheels]
  14. [Tongues of Flame]
  15. [“A Bolt from the Blue”]
  16. [Justice Cheated]

THE BLACK BOX
Universal Photo Play Edition
CAST OF CHARACTERS

Sanford QuestHerbert Rawlinson
Lenora MacDougalAnna Little
Prof. Ashleigh
Lord Ashleigh		}William Worthington
Lady AshleighHelen Wright
John CraigFrank MacQuarrie
Laura, Quest’s assistantLaura Oakley
Mrs. Bruce RheinholdtHylda Sloman