An unknown thief steals an important naval treaty from the office of Mr. Percy Phelps, a Foreign Office clerk. Phelps's distress gives him a brain fever that lasts for nine weeks. As he begins to recover, he writes to his old schoolmate, Dr. Watson, begging him to invite Sherlock Holmes to investigate the matter and find the treaty. Otherwise, his honor and happiness are gone forever. Holmes takes up the case with zest, but gives Phelps no false hopes. The mystery is as dark and tangled as any he has known.
Did You Know?
This episode makes reference to Holmes's cocaine use. See more
Dr. John Watson
Come along, Holmes, that bandage tells of adventures. Now what happened?
After breakfast, my dear Watson. Remember I have breathed thirty miles of Surrey air this morning.
Illustrations by Paget from the original story are seen during the credits. See more
Version of The Naval Treaty