Rachel Krall is a fictional character from the novel series "The Good Girl's Guide to Murder" by Holly Jackson. She is a determined and resourceful young woman who investigates a murder case that has remained unsolved for years. Rachel's character embodies traits of intelligence and perseverance as she seeks the truth. In the story, Rachel uses her skills in journalism and research to uncover hidden details about the case. Her journey highlights themes of justice and the impact of unresolved crime on a community. Rachel's character resonates with readers who appreciate strong, investigative protagonists.