What does Haymitch Abernathy send them in chapter 22 the book of hunger games?

In Chapter 22 of "The Hunger Games," Haymitch Abernathy sends Katniss and Peeta a small package containing a vial of nightlock berries.

This is a critical moment in the story as it foreshadows the events that will unfold in the final moments of the games. The nightlock berries are highly poisonous and represent Katniss's desperate attempt to save herself and Peeta from the cruel reality of the Games.