How does the author use foreshadowing in Dragon Bones: A Novel?

In Chapter Two, the case assigned to Hulan foreshadows her involvement in Site 518. It is clear from the start that the body Hulan is researching is that of the body in the prologue of the novel. The papers found on Brian's body foreshadow information later in the novel about Brian's work in Chinese language and symbols. However, the ease in which she obtains the identity of the man furthers the idea that she is being set up for something. Her appointment with Zai at three foreshadows her and David's combined assignment of the case.