Letters from the Inside

The reading book i am working on is called "Letters from the Inside". The book's about a girl named Mandy who responds to an ad in a magazine for a pen pal. She begins to write this complete stranger from another country named Tracey. In the first letter Mandy writes:
"Um, what do i say now? I know what i won't do, and that's tell you my star sign, favourite group, favourite food, all about my sister and brother and the usual junk. If that's what you want, don't bother answering this letter, OK? That's not me."
After this letter is sent to Tracy, she writes back and asks questions to get to know Mandy a little better. And after a couple letters, Mandy begins to tell Tracy about school and her favorite bands and what magazines she reads, she even mentions her brother ans sister an explains how she feels about them; which is exactly what Mandy said she wouldn't do. Then as the letters go back and forth and travel, the pen pals become closer. And i believe this shows how the main character is dynamic and changes throughout the novel. At the beginning of the book, Mandy seems more interested in Tracy then as their relationship goes on longer, Tracy becomes more fond of Mandy.