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主题思想的体□<□h2>
<□>A□ the searc□ □ontinued, crypti□ clue□ started to emerge, addin□ anot□e□ lay□r □f intrigu□ to the □as□.□□ymbols ca□ved□□nto□tree□□□strange markings □n rocks, and cry□tic note□ le□t beh□nd onl□ deepe□ed □□□ mystery surroundin□ the missi□g n□ne. Were these clues intent□ona□□y l□ft □eh□nd,□or were they simply a pro□uct of t□e gr□u□'s p□ranoia□and unrave□ing □tate of mi□□?