Let's talk about the atmosphere. The plot works because of its setting. The depiction of 1960s New York Chinatown, with its crowded streets and exotic (to Nancy) shops, is central to the mood. The mystery leverages the location for clues—a fortune cookie factory, a temple, narrow alleyways. The 'fire dragon' isn't just an object; it's a symbol that ties into the cultural backdrop, even if that backdrop is filtered through a mid-century American lens. The plot is essentially a treasure hunt, but the unique setting gives it a distinct flavor compared to the mansions and country estates of other books.
By comparing stories. She interviews everyone connected and looks for the one detail that changes, the one point of view that's slightly off. Inconsistency is the crack in the wall. In 'Fire Dragon,' three people describe the same event, but one mentions a blue car while the others insist it was black. Or someone's account of timing is just a few minutes off from the others. Nancy focuses on that outlier and digs into why that person's story is different. Often, it's because they're involved or they saw something they're trying to obscure. She solves it by being a human lie detector, comparing narratives.
Number thirty-eight. Original text is better than the revision, in my opinion. The 1974 revision cut some of the more descriptive, atmospheric parts to shorten it, which is a shame because the Hong Kong setting was the best part. Seek out the 1961 version if you can.
From a narrative twist standpoint, the key role is played by the concept of 'identity.' Without spoilers, who 'The Ember' turns out to be relies on a misdirection about another character's role. The janitor at the university, Old Man Harrigan, is initially set up as a red herring suspect but later provides shelter. His role is key in teaching the reader (and Alistair) to look beyond surfaces and job titles for motive and knowledge.