The scene
Tram Museum · OfficeThe key to a model disappears from the office between the curator's checks at 16:08 and 16:10.
There were only three visitors. Their recorded entries identify who was inside during that interval.
What we know for certain
The curator directly checked that the key was present at 16:08 and absent at 16:10. One of the three visitors removed it while inside. The clocks were synchronised; there were no other entries, doors, accomplices or objects thrown in from outside.
The three accounts
Álex Muro
Guide«I went in briefly to leave a folder, then returned to the lobby.»
Bea Lozano
Restorer«My visit was short. I found nobody in the office.»
Ciro Dalmau
Gallery attendant«My visit was already over when the curator arrived.»
Examine the evidence
0 of 5 openedOpening these five clues does not cost points.
01The two checks
The key is visible on the desk at exactly 16:08. At exactly 16:10, the same desk is empty.
02Álex's visit
The log places Álex inside from 16:08:30 until 16:09:30.
03Bea's visit
Bea entered at 16:12 and left at 16:13. She had not entered earlier that afternoon.
04Ciro's visit
Ciro was inside from 16:05 until 16:07. The log confirms he did not return.
05A single entrance
The system records every crossing of the only door. No visitor could touch the desk from the corridor.