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The Three Investigators in The Mystery of Monster Mountain
Robert Arthur,
M. V. Carey
—
1985
The three young sleuths solve a case of double identity while investigating the legend of Monster Mountain.
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Luke
@reeferqueefer
3.5 stars
Aug 29, 2025
Colton Ray
@coltonmray
4 stars
Apr 16, 2024
Alex
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3 stars
Dec 3, 2021