Answer:
an additional layer of meaning
Explanation:
An allusion in a poem refers to a person, place, historical event, or ancient source such as the Bible, mythology, ancient poets etc. It refers outside of the poem itself to evoke a mental picture, create an image, and set the poem in a larger context or setting.
I believe you are talking about Romeo and Juliet
Shakespeare let you know the tragic ending of the story right at the very beginning since he uses foreshadowing. In Act 2, you can see Romeo having a bad feeling about going to the banquet.
Richard Bachman is better known as Stephen King