Zim and Gir Mystery Cache
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Difficulty:
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Terrain:
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Size: 
(small)
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I thought a puzzle cache starting with Z was a good
idea...
My youngest geodaughter is a big fan of Invader Zim. She starts
singing the Doom song any ol' time of day.
You can check your answers for this puzzle on
Geochecker.com.
Additional Hints
(Decrypt)
Big Hint: Npebff fznyy genvy sebz cbyr friragl-rvtug.