3 sentence summary on the Way to Bea

In “ the way to Bea” by Kat Yeh, Bea loves to write haiku with invisible ink and putting it in a hole in a wall that no one knows about, then one day someone writes back, she is trying figure out who could be writing back on top of that were she fits in. She is going through one more huge change in her life she is becoming a big sister and has to pick the perfect middle name for her. And will her old best friend start talking to again, or will they just ignore each other for the rest of 7th grade?