WRITING OBSTACLE
Write a story where an object that is inconspicuously mentioned early on is a key element of the plot towards the end of your story.
Using an object is an easy way to foreshadow an idea, but you could also try using something else like dialogue, or another character, to foreshadow your plot.
Keys
He looks fastly around himself,trying to see if he had took everything he needs with him. And in his mind,he does. At least for now. The boy leaves,and in his background,in the house,forgotten on a small table which is almost at the entrance of the house sits a few keys left from his grandparents. They had left the keys as a reminder that there is always a way to get what you want,as there are multiple keys.
But the keys are now covered with dust,unused.
Hours later,he is in a building. A small game that he had decided to play with a few friends of his had turn out to be his biggest mistake. To exist from here and to survive,he needs to unblock so many doors with a pair of keys. And then,it hit him. He has the keys. No,he had them.
He had left them on the table. And with them,his possibly of getting what he wants. Even if what he wants now is to live.