There's something ironic about writing about a detective who's a member of the church right after the previous post on this blog...
The Mystery Cases of Sister Holmes: The Diamond Rosary (2025) is a one-shot manga by Queenie Chan, created for the Viz Original One-Shots program, a project led by former Weekly Shonen Jump editor-in-chief Sakaki Hisashi as he searches for new comic talent to showcase. Set in an alternative Britain (no, not Parallel Britain, that's a different one!) in the year 1890: that world is similar in some ways to our own, and different in other ways. One similarity is the existence of crime though, and another one is the existence of detectives. Sister Holmes is a nun from the Order from the Three Marys with a keen eye for detail and a knack for solving mysteries, accompanied by Father John Watson, who seems to be a hit with women churchgoers of their parish. After succesfully solving the theft of the diamond rosary of the widowed Baroness Radcliffe, Sister Holmes is surprised to learn the baroness had been receiving threatening letters with the accusation her family fortune has been stolen, and that she is to return the rosary. Fearing the thief Sister Holmes caught might not be the sender of these letters, the baroness once asks for the presence of Sister Holmes to investigate letters. However, upon arrival at the manor, Sister Holmes and Father Watson learn the baroness' rosary has been stolen once again. Why the fixation on the diamond rosary, and how was it stolen?
As the title of the comic, and the name of the protagonist suggests, The Mystery Cases of Sister Holmes is written very much like a Sherlock Holmes story: not only is it set in the same time period (though in an alternative version of 1890s Britain) and do we have a main cast with familiar names, we have a tale that doesn't involve murder per se, but the theft of a piece of jewellery and perhaps more importantly, the motive for the theft and the underlying story that compelled the thief to act. The (second) theft of the rosary is solved very swiftly actually, and if you're familiar with impossible theft stories, you might recognize the basic concept behind the trick, but props for the visual clue showing how it was done, as it makes this feel like a proper mystery manga that makes use of its medium.
The majority of the nearly seventy pages of this comic however is devoted to uncovering the background of the crime: why is the thief after the diamond rosary, and what is the meaning behind these letters sent to Baroness Radcliffe? Here the Sherlock Holmes influences are felt the strongest, with a dramatic backstory acting as the motivation for certain characters to take desperate actions: the story makes good use of its historical setting (which despite its fictional setting, feels very realistic) and you can almost imagine this being a real Holmes story. The visual clues here are again used to help flesh out the mystery-related aspects of the tale, though I do think the reveals here feel a bit underwhelming: the focus lies more on the underlying story unraveling and the consequences for the involved characters, with the mystery elements acting as a device to facilitate those moments, so as a puzzle-focused reader, I can't help but feel wanting for a bit more surprise in the mystery department.
That said, as a one-shot mystery manga, The Mystery Cases of Sister Holmes: The Diamond Rosary is decent enough and as the world already feels quite fleshed out, but with the potential of showing more depth, it'd be interesting to see if this could be extended into a full serialization, for the characters of Sister Holmes, father Watson and the rest are quite fun to follow. I certainly wouldn't mind seeing more of them. The comic can be read for free at the website of Viz, so I'd recommend have a look there, though there is geo-locking, so depending on your location you might not be able to read it.