What is an example of foreshadowing in the novel, All the Winters After?

Foreshadowing abounds in the frequent references to knives – Vladimir's weapon of choice. The novel begins with the phrase “Evening crept its way into the cabin, and she went to get her knife,” and shortly thereafter, Kache observes the town's namesake caboose from the height of an airplane, looking like a “smear of blood on the tip of a knife” (12). The author also provides repeated hints that the cabin is under surveillance and plants careful references to the gun and cell phone that play pivotal roles in the novel's climax, noting that the gun remained in the car after Kache and Nadia's trip to Altai, and that she never remembered to charge her cell phone, so she would be unable to call for help when she needed it.