What is foreshadowing in the book Uglies?

Foreshadowing in the book "Uglies" by Scott Westerfeld is a literary device where the author hints at future events or outcomes in the story. In the book, foreshadowing can be seen when Tally's friend Shay talks about the mysterious city of the Smokies, hinting at its importance later in the plot. Another example is when Dr. Cable warns Tally about the consequences of betraying the city, foreshadowing the challenges Tally will face as the story progresses. These subtle hints build suspense and anticipation for readers as they follow the characters' journey.