Because piggy wants to be heard he has something to say but nobody listens to piggy.
The answer is: Foreshadowing
The Foreshadowing is a literary device where the writer gives to the reader an advanced hint of what is coming to the story, the author uses it to create expectations in the public about what going to happen next, in this example the split of the three represented the future split between Jane and Rochester.
He didn’t expect to see her there (1)
Reading made Fredrick Douglas realize that, slavery was not right, and that each and every person had the right to be free. It made Douglass unhappy with the way he was forced to live.