Answer:
"Go, tread the path that thou shalt ne'er return... soul to heaven."
Explanation:
In these lines, Richard III is saying goodbye to the duke of Clarence. However, as he does so, he also tells him that he doubts he will ever return. He also tells him that he will soon send his soul to heaven. These lines indicate that Richard III will most likely harm, or even kill, the duke of Clarence. Foreshadowing refers to a literary device in which an author gives us a hint of what is going to happen later in a story.
