Well, 'a trace of the wonder novel' might be about the discovery of a little bit of magic or extraordinary elements in the plot. Maybe it's about a character finding a small clue that leads to a world full of wonders. For example, it could be like a young girl finding a strange mark on a tree in her backyard, and that mark is the trace that leads her into a magical forest which is the main setting of the novel.
Well, a trace of the wonder novel could mean a small aspect or hint that brings about that sense of awe and amazement. Maybe it's a particular character trait, a hidden plot twist, or a special setting detail.
The movie 'Leave No Trace' is indeed a true story. It was inspired by real-life circumstances and characters, presenting a genuine and touching narrative.