Rating: WORTHY!
Written by Martinetti and Lebeau, illustrated by Franc, and translated from the original French into English by Edward Gauvin, this was a really good graphic introduction to Agatha Christie, which I encountered during a search of my local library's resources regarding Christie biographies.
It begins in what is often seen as the biggest mystery about this author, which is what happened to her during her short disappearance in December of 1926. Personally I think it can be quite adequately accounted for in precisely the way this book explains it - she was pissed-off with her husband, who had told her he wanted a divorce so he could continue seeing this woman he had met, named Nancy Neele, and apparently decided that he liked better than he did Christie. I also think her depression over this may have been exacerbated from her mother's death earlier that year.
But this graphic novel goes further, bringing in her literary creations, most especially Hercule Poirot, as characters in the story, seen and heard only by Christie, but who comment on her life and discuss things with her, annoying her as often as not. The story as told her is interesting, engaging, and moving, and tells a complete story, abbreviated as it necessarily is in this format. I commend it as a worthy read.