Cather (Cath) is the twin sister of Wren. Their mother had abandoned the family when they were eight and they were raised by their bipolar father. Heading off to college Cath was concerned about him, disturbed that her sister didn't want to room with her, and pressured to finish writing her fan fiction story before the last episode of the original series is released.
She has found great satisfaction and recognition for her stories about Simon Snow (think Harry Potter) on the website FanFixx. Having been allowed into the class Fiction Writing, she is shocked to find her teacher thinks fanfic is little more than plagiarism and she is finding it hard to create her own characters and situations.
Cath has more things to worry about as she starts college. From the location of the cafeteria to meeting new people she finds comfort in her writing.
I highly recommend this book to anyone going off to college.