What exactly do you mean by prescribed fires?
Here is the answer that I found for your question :)
Answer: He threatens that if they do not pay him full atonement for the cattle, he will take the sun to the Underworld and shine it among the dead.
Explanation:
An argument is sound if it is truthful and if it's valid. If all parts of it are valid and truthful, then the conclusion is also valid and truthful and therefore solid. That's why you should ask whether it is valid and true.