The scene
Municipal archive · AnteroomAn exhibition stamp disappears between 12:00 and 12:10. Three assistants visited the building.
Two had permission to open the room. The visiting times and access cards must fit together.
What we know for certain
One of these assistants removed the stamp while in the building, using their own access card. They did not lend cards or return after leaving. Only a silver card opens the room; the curator’s observations and the records are reliable.
The three accounts
Dora Vidal
Cataloguer«My card opened the room, but my visit ended earlier.»
Elio Sanz
Installer«I entered with my usual card. I did not remove the stamp.»
Fátima Roca
Press visitor«I was in the building during the stated interval.»
Examine the evidence
0 of 5 openedOpening these five clues does not cost points.
01The disappearance interval
The stamp was in the room at 12:00 and missing at 12:10. It was removed between those two times.
02The assigned permissions
Dora and Elio had silver access cards. Fátima had a gold card that allowed entry only to the anteroom.
03Dora’s visit
Dora entered at 11:40 and left at 11:50. She did not cross the entrance again.
04The other two visits
Elio was inside from 12:02 to 12:05. Fátima stayed in the anteroom from 12:03 to 12:06.
05The room’s door
The inspection rules out gold-card openings, entry through another door or access from the anteroom without a silver card.