How does tolkien insinuate or imply the answer to this puzzle before the characters do?

Tolkien often uses subtle foreshadowing and symbolism in his works to hint at future events. He may drop vague hints or descriptions that only make sense in hindsight, creating a sense of mystery and anticipation for the reader. By weaving these clues into the narrative, Tolkien leads readers to draw their own conclusions before the characters in the story do.