120 minutes: Independent origin checks and the repair history
Opening agreement: 10 minutes
Separate observations from the draft warning: 20 minutes
Compare the live lamp and hill dispatch: 30 minutes
Reconstruct the emergency swap and pin the frame: 25 minutes
Choose a repaired survey or a dated correction: 25 minutes
Closure and debrief: 10 minutes
Visit the hill station to test the source through two independent paths and learn what the ominous wording means. Six intervals permit one reconstruction plus full repair; a deliberate pause still preserves a valuable verified correction.
Starting information: Discover cards in play
Starting state: Careful verification intervals = 6; Local signal origin established = false; Reversed labels established = false; Mirror frame held by service pin = false; Mirror labels corrected = false; Retained observations cross-checked = false

Careful verification intervals: __________ (resource)
Local signal origin established: __________ (knowledge)
Reversed labels established: __________ (knowledge)
Mirror frame held by service pin: __________ (flag)
Mirror labels corrected: __________ (flag)
Retained observations cross-checked: __________ (knowledge)