Record 5af47546822947bc98987971477a5067

We need to track Adrian's beliefs about where the bright box is based on his observations. The scenario includes actions by various people; we must see what Adrian knows/witnesses.

Given statements:

- At 8:00, Adrian took the bright box and placed it in the utility closet.
So at that moment, Adrian knows he placed it there.

- At 8:01, he took the bright box and placed it in the rooftop terrace.
Thus after moving from utility closet to rooftop terrace, he knows it's now at rooftop terrace.

- At 8:02, he took the bright box and placed it in the archive room.
Now he believes it's in archive room.

- At 8:03, Piers brought the bright box over to the boiler room.
Adrian "happened to be watching." So Adrian sees Piers move the bright box to boiler room. Therefore Adrian updates belief: bright box now in boiler room.

- At 8:04, Opal carried the bright box to the kitchen.
"he was nearby and saw this happen." Who is "he"? Likely Adrian again (since earlier "he" refers to Adrian?). Let's parse: At 8:04, Opal carried the bright box to the kitchen. At 8:04, he was nearby and saw this happen. Since previous sentence had Adrian watching Piers, likely "he" still Adrian. So Adrian sees Opal move bright box to kitchen. So Adrian believes bright box now in kitchen.

- At 8:05, he moved the bright box into the meditation room.
Who is "he"? Probably Adrian (subject continues). So Adrian moves bright box to meditation room himself. He knows it's there.

- At 8:06, Piers moved the bright box into the library.
"At 8:06, Adrian happened to be watching." So Adrian sees Piers move bright box to library. So Adrian believes bright box now in library.

- At 8:07, Piers took the bright box and placed it in the meditation room.
No mention of Adrian watching. Did Adrian see? Not stated. So Adrian may not know about this move unless he observed. No explicit watch. So Adrian's belief remains as last known observation: at 8:06 he saw Piers move it to library. Unless he later sees something else.

- At 8:08, Adrian took the cracked box and placed it in the utility closet.
This is about cracked box, not bright box. Doesn't affect bright box belief.

- At 8:09, he carried the cracked box to the archive room.
Again cracked box.

- At 8:10, Piers reorganized some papers on the desk. Irrelevant.

- At 8:11, Opal refilled a cup of coffee.

- At 8:12, Adrian checked their email.

Thus Adrian's last known observation of bright box was at 8:06 when he saw Piers move it to library. After that, at 8:07 Piers moved it to meditation room but Adrian didn't watch (no statement). So Adrian still believes it's in library.

Thus answer: library.

Check if any other observation after 8:06: none. So Adrian believes bright box is in library.

Answer format: just location name.