Good Girl Bad Blood is one of my favourite books in an amazing series. In the first book, A Good Girl’s Guide to Murder, Pip becomes a detective to help solve a case, but during her investigations, she causes her dog to die, attracts threats and puts her whole family in danger. When this sequel begins, Pip has decided to give up being a detective. However, when a good friend’s older brother goes missing, she wonders whether she should risk her life again to help find him. This book will leave you on the edge of your seat wanting to uncover your own detective story.