What is the main conflict in Afternoon of the Elves by Janet Taylor Lisle?

The main conflict in the novel, Afternoon of the Elves, revolves around the many factors that threaten the friendship between Hillary and Sara-Kate. These factors include Sara-Kate's mother's illness, Mrs. Lenox's aversion to Hillary spending so much time with her new friend, and Hillary's other friends, who treat Sara-Kate as an outcast and find her eccentric.