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Music/Sound
A sound or piece of music leads Treasure Hunters to the next clue.
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Invisible Lemon Juice Ink Writing
A clue is written in lemon juice, which can only be read by gently warming the paper it is written on.
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Invisible Black Light Writing
Use a special pen to write a clue that can only be read with a “black light”.
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Letters In A Maze
The letters on the correct path through the maze spell out the location of the next clue.
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Letters With Transparent Overlay
A grid of random letters hides a clue, which is revealed by correctly positioning a transparent sheet over the top.
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Writing In Steam
Write a clue in steam or misted windows.
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Spelling Errors
Deliberate spelling mistakes in the clue’s text hide the location of the next clue.
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Flag Signals
Hunters are given a clue spelt out with maritime flag signals.
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Jigsaw Puzzle
The next clue is written down and cut up to form a jigsaw puzzle.
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Combination Locks
A combination lock gives the next clue by using digits found on other clues