Answer:
I'm thinking that "riding to their deaths" could mean two different things.
1. A simile, Riding to their deaths can mean riding for a long time.
2. Literally, Riding to their deaths can also mean that they are going to get into trouble from something ahead.
Explanation:
A digit in the ten thousands place compares to a digit in the thousands place because it is it has an extra zero and a digit in the ten thousands place is one place value ahead of the digit in the thousands place