Which theme has the author explored in this passage?
isolation
immortality
revenge
slavery

Isolation (Im Assuming)

Explanation:

Although there is not enough information given, from what the passage says, it sounds like someone needs help and they sound isolated.

the answer is emerged from.

orpheus descended to hades, the world of the death to rescue eurydice. no mortal had ever done this before him, he survived because he was protected by the gods. the word "underworld" gives us a clue, he emerged from it like a whale emerges form sea for exemple.