What is the mysterious fire that Paul and his mother discover in Tangerine?

In "Tangerine" by Edward Bloor, the mysterious fire that Paul and his mother discover occurs at the local citrus grove, which is critical to the community. This fire symbolizes underlying tensions and conflicts within the town and foreshadows later events in the story. The incident serves as a catalyst for revealing deeper issues related to the family's dynamics and the hidden truths about Paul's past. It also highlights themes of resilience and the struggle against adversity.