 However, Lissa confides that she plans to sneak into the Old Willis Place and explore while her father is away, inviting Diana to go with her.Diana is wary, as entering the house is against the rules, but she is so desperate to have Lissa for a friend that she agrees.The following day, Diana and Lissa enter the Old Willis Place, where Lissa feels compelled to see the locked parlor in which Lilian Willis died because Mrs. Willis possessed her.