A priceless artifact disappears from a museum at midnight, yet all alarms were intact. What could be the thief's method?

Category: Mystery · Difficulty: hard

Hint: Think about the museum staff.

Answer

The thief had inside information.

Explanation

An insider would have knowledge of the alarm system and the ability to disable it temporarily.

This is a hard mystery riddle — a tricky one that takes a little thought. The answer is The thief had inside information..

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