The Lighthouse Signal
A Storm, a Manual Override, and a Keeper at the Bottom of the Stairs
“The beacon went dark 14 minutes before he fell.”
The Crime
Night keeper Robert Hale was found at the base of the lighthouse stairwell, the beacon dark above him. The Coast Guard ruled it a fall during a violent coastal storm. Three details don't fit. First, the lighthouse's signal was switched to manual override fourteen minutes before Hale's estimated time of death — the console records it, though the log was intermittent during the storm. Second, the senior keeper, who holds administrator access to everything in the tower, was supposedly ashore. Third, Hale had recently documented a pattern of unauthorised "manual overrides" during prior severe-weather windows and hinted to headquarters that he was ready to file a formal complaint. Three suspects have access to the tower console and a reason to want Hale quiet.
The Setting
A weathered stone lighthouse on a rocky coastal cliff. Storm black, the kind of storm that empties radar rooms. Waves crashing against the rocks, spray reaching the tower base. The beacon dark against clouds the colour of wet slate, lit occasionally by a fork of lightning. Below the tower, a narrow keeper's cottage with one warm window. The whole location is twenty minutes from the nearest paved road in good weather, and in this storm it's effectively off the grid.
Suspects & Persons of Interest
Thirty-year veteran caretaker. Holds administrator access to the lighthouse console and knows the tower’s quirks better than anyone.
Remote storm monitor for CoastWatch. Has legitimate reasons to access the lighthouse telemetry during severe weather windows.
Runs deliveries to the lighthouse. Recently behind on loan payments and openly furious about delayed reimbursements.
Newly reassigned. Documented multiple safety complaints and hinted at reporting ‘manual override’ practices to headquarters.
What You'll Investigate
Lighthouse console forensics — recover intermittent log entries and identify which account issued the manual override.
How this technique works →Radio forensics — CoastWatch recordings from the storm captured more than weather chatter.
How this technique works →Photo metadata — every photo taken that night, by anyone, becomes a timestamp and a location.
How this technique works →How It Plays
Medium difficulty. 75–90 minutes. A good second DetectiveOS case after The Vanishing, or a strong first case if you like folk-horror atmosphere and maritime settings. Three suspects — small cast, dense interrogations. The central investigative question is whether Hale's fall was genuinely accidental and, if not, who had the access and the fourteen-minute window to stage it.
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