The 221B Daily

A new edition from Baker Street every morning.

Wednesday, 21 October 2026 | Difficulty III

The Case of the Naval Officer's Code

A junior naval officer's locked desk has been rifled and a draft signal-code is gone. He has the only key. His superior speaks of court-martial.

Engraved key object plate for The Case of the Naval Officer's Code.

Section I

The Scene

Victorian newspaper-style illustration for The Case of the Naval Officer's Code, set at Lieutenant Marsh's quarters, HMS Excellent, Portsmouth dockyard.
Hand-drawn case map for The Case of the Naval Officer's Code, showing Lieutenant Marsh's quarters, HMS Excellent, Portsmouth dockyard.
The ground in question.
Setting
Lieutenant Marsh's quarters, HMS Excellent, Portsmouth dockyard
Time
Wednesday morning, third Wednesday of October 1893
Weather
Cool; a light wind off the harbour; gulls overhead
Atmosphere
A small wardroom-quarter with a sea-going chest and a writing-desk under the porthole; the smell of brass-polish and sail-canvas; the masts of HMS Victory visible across the basin.

The rest of the edition is reserved.

Sign in with Google to read the rest.

Today’s case is free for every reader. Back issues open with a free Google sign-in, limited to three archive reads each calendar month. Strand subscribers may roam the full archive at will.

Sign in with Google