Midnight Alibi / Rooms
The manor
Twelve rooms, one long night. Each case uses four to six of them, and every suspect visits each room exactly once.

Library
Shelves to the ceiling, a rolling ladder and a fire that never quite goes out.

Kitchen
Copper pans, a scrubbed oak table and a back door to the kitchen garden.

Ballroom
A chandelier over an empty floor, and the piano lid still up.

Conservatory
Glass, palms and orchids, warm as July even at midnight.

Study
The desk, the ledgers, and the safe nobody admits to opening.

Cellar
Wine racks, cold stone and a single bulb on a chain.

Lounge
Deep armchairs, a card table and the good whisky.

Hall
The front door, the stairs and every coming and going.

Attic
Trunks, dust sheets and a round window over the drive.

Chapel
Candles, a cold pew and the family vault beneath.

Gallery
Ancestors in gilt frames, watching the long corridor.

Garden
Gravel paths, a sundial and the hedges by moonlight.
On the board, each room has its own symbol and color, so you can read the timeline quickly.