I think it is "by foreshadowing what will happen"
Please add the article, so we can properly answer your question. 99% of us have not read the story. Thank you!
Answer:
Allowance can mean 2 things, it just depends on the context.
- the amount of something that is permitted, especially within a set of regulations or for a specified purpose
- give (someone) a sum of money regularly as an allowance.
Consisting of small partpathat are disconnected or incomplete.