Where is the Gold?

Seven clues. One story. One truth.

Welcome to The Seventh Game. At the Chemical Company, several gold cups are gone.

Clue One — The Empty Sweep
The inspector's search found nothing. The lab was spotless.
Clue Two — Cleared Badges
Staff confirmed only authorized personnel were present.
Clue Three — Final Departure
The very last person to leave the laboratory was Professor Harvey.
Clue Four — Metal Gate
A metal detector guards the exit. Solid gold cannot pass through.
Clue Five — Quiet Logs
The security logs were normal. No alarms were triggered at all.
Clue Six — Vanished Trace
The inspector was stumped. The gold vanished without a trace.
Clue Seven — Corrosive Shelf
On a shelf, his eyes found a single bottle. The label read: Aqua Regia.

Inspector Rollin knew the answer. Can you? Verify your answer at the7top web.

Verify Your Truth

Correct solvers may share the hall of fame.

Verification checks only the required elements and time, in the exact order. No solution revealed.