Pippa (short "Pip") Fitz-Amobi is the protagonist of A Good Girl's Guide To Murder series by Holly Jackson. She is 17 years old as of the first book. She grew up in Little Kilton (Fairview in the US Version) the same small town that was consumed by the murder of Sal Singh. She's a very smart detective and when she's focused she doesn't snap out of the thing she's focused on