The Dr Osei Vance Affair — Grand Sleuth, 21 July 2026

Grand Sleuth · 21 July 2026 · Aetherius Station

The victim is Dr Osei Vance. Three papers a year, no friends. The observation deck is his church.

The case file

This Grand Sleuth case is set in Aetherius Station and puts 5 suspects, 5 rooms, 5 weapons, 18 clues on the board. No detective filed a correct verdict on the day it ran.

Deduce cases are logic-grid deduction puzzles: read the clues, eliminate the impossible, and name who did it, where, and with what. This case was verified by a constraint solver as solvable by deduction alone before it was published. The solution is not published here — the only way to know is to work it out.

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