What is the rising action of THE SHACK?

In "The Shack" by William Paul Young, the rising action revolves around the protagonist, Mack, as he struggles to overcome his deep emotional pain and turmoil following a personal tragedy. As he receives an unexpected invitation to return to the place where the tragedy occurred, the story builds tension as Mack begins to confront his past and grApple with his beliefs about God and forgiveness. This leads him to various encounters and discussions that challenge his preconceptions and help him on a journey of healing and reconciliation.