A painting in a gallery has a hidden message revealed only under ultraviolet light. What does that imply?

Category: Mystery · Difficulty: hard

Hint: Consider how artists convey hidden messages.

Answer

There may be secret communications tied to the crime.

Explanation

The hidden message may contain vital information regarding the criminal or the crime itself, revealed through a specific method.

This is a hard mystery riddle — a tricky one that takes a little thought. The answer is There may be secret communications tied to the crime..

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