Interested in Language
Could you please shed some light on this?
In the end of the story...
In the end of the process...
I believe it should be at the end, not in. Could there be any context in which in would work in those sentences?
You are correct when you say that the sentences should read:
At the end of the story...
At the end of the process...
The difference between "at the end" and "in the end" is very subtle. The sentences that you wrote sound almost correct to a native speaker, but not quite. "In the end" is an idiom that is used independently of an object noun. "At the end" is almost always accompanied by "of." (Ex: At the end of the line... At the end of the road... At the end of the description...) However, I've never seen "in the end" paired with "of." (Ex: In the end, she decided to stay. In the end, it doesn't really matter.)
You could use "in the end" for the story if you wrote it like this:
In the end, the characters in the story resolved their conflicts.
Otherwise, it would read:
At the end of the story, the characters resolved their conflicts.
I hope that helps!