What surprise does Cassie have planned for Lillian Jean on the forest path?

After school on the last day of exams, Cassie meets Lillian Jean on the road and tells her that she has something in the woods to show her. After walking into the woods, Cassie throws Lillian Jean's books down on the ground. When Cassie won't pick them up, Lillian Jean slaps her. After the older girl has struck her first, Cassie thinks that it is fair to fight back. Cassie has had Big Ma braid her hair flat to her head so Lillian Jean cannot pull it, but Cassie grabs onto Lillian Jean's long loose hair and twists it until she apologizes for her superior behavior and for the incident in Strawberry. Cassie lets her go saying that if she tells her father about the fight, she will tell Lillian Jean's friends all the secrets that she knows about them. Lillian Jean just cannot understand that Cassie