Use the story to answer the question

To enhance the tension and mystery in the dream subplot of "The Crow-Child," I could introduce a recurring ominous symbol that appears in the dreams, foreshadowing a significant event or danger that the protagonist has yet to understand. Additionally, I could add cryptic messages or voices within the dreams that lead the protagonist on an unpredictable path, creating uncertainty about their trustworthiness. Finally, revealing that the dreams are connected to a dark secret from the past of the protagonist's family could raise the stakes, intertwining personal history with the unfolding narrative and adding an element of surprise.