Headscratchers / The Island Of The Immortals

• The Immortal cannot die of natural causes and has only healed to a realistic extent from previous injuries such as being burned and losing its legs, but has anyone made a genuine attempt to kill it to put it out of its misery? Surely it has a heart that the villagers can try attacking to see if that would do it. Or maybe they just don’t want to because they need it alive for the money.
  • Given that the villagers make a habit of burying their immortals once they get old enough, it’s entirely possible that there genuinely is no other way to put them out of their misery and see burying them as a mercy.
• Why do the non-immortal villagers continue to live on the miserable island, knowing that they are constantly at risk of being bitten by the immortal fly and suffering the same fate as The Immortal, something everyone in the story wants to avoid? The villager woman's comment implies that she and her children feel safe in the village because the flies do not bother them, and there is probably only one fly among the many that can grant immortality, but what about the other residents who wear gauzes to keep the flies at bay outside of the village? Wouldn't it be smarter to save Radlos and leave? Then again, the narrator seems to think that they accepted that this is just life for them.
• Why don't the flies bother anyone in the village? They seem to be very persistent in their attempts to bite people, but they flee as the narrator nears the village.
• Where did the immortal fly (or flies) come from in the first place? Did it get its immortality from someone or something else? Or was it just hatched that way?