How does the author use foreshadowing in No Telephone to Heaven?

Chapter Two contains two important examples of foreshadowing. First, there are the references in the narrative of the party to the pale skinned girl (who later turns out to be protagonist Clare) and to Harry/Harriet (who later becomes Clare's best friend). Also, Charles' actions can be seen as foreshadowing of Clare's apparent intentions towards the racism-defined film crew in Chapter Eleven. For further consideration of the metaphoric relationship between Charles' acts of murder and Clare's apparent intentions as hinted at in the book's final chapter.