Fire
Fire is very symbolic throughout the entire novel. Brian Fitzgerald uses fire as his escape from his hard life and family crisis, while Jesse uses fire to control and destroy.Although Jesse and Brian approach fire in different ways, fire means the same thing to both of them.
Stars and Astronomy
Anna and her father Brian are extremly close throughout the novel. He explains that her mother and him named her after the galaxy that is said to be located between it's mother and father. This shows the reader that she has one parent on either side of her, one supporting her decisions and one fighting aginst them. Atronomy is mentioned numerous times and Brian also uses this hobby as an escape.