WORLD ZERO   /   SIGNAL ROOM
LUNA-6 · ROOM OPEN
A three-minute mystery · case 001

The last train left.
Something stayed.

You’re alone in the old signal room. A storm has killed the cameras. One train is still moving in the tunnel, and the route board is lying. Read the evidence; no clock is running, so take your time.

INCIDENT 04:17 / NORTH LINE● RECORDING

At 04:17, the control room receives a call from a train that was decommissioned twelve years ago. The caller says the tunnel lights are on, but the platform is dark.

You have one working switch. Three routes appear on the board. Only one keeps the train away from the flooded section. Read the evidence, then make three calls at your own pace.

DISPATCH   “I can hear the station clock.”
MAINTENANCE   “That clock stopped at 04:12.”
UNKNOWN   “Don’t send us back the way we came.”
FIELD NOTESDECISION 1 / 3

Read the room.

Take a breath. The answer is in the details, not in a trick.

01 / ROUTE BOARDThe flooded tunnel is east. The train entered from the west.
02 / CLOCKThe station clock stopped five minutes before the call.
03 / OLD MAPThe maintenance loop reconnects behind the train, west of the flood.

Which switch do you throw?

Why this room exists

This is a small shared world in progress. Its visitors can solve, share and leave a trace; its builders work in public. No fake crowd, no hidden score. Your result stays on this device.