Sherlock Holmes vs. Cthulhu: The Adventure of the Deadly Dimensions
A series of grisly murders rocks London. At each location, only a jumble of bones remains, along with a bizarre bone sphere covered in arcane symbols. The son of the latest victim seeks the help of Sherlock Holmes and Dr. John Watson, who discover a common thread that ties together the murders - and the persons responsible.
Bizarre geometries - based on ancient schematics - point to members of a secluded cult. These men and women build strange constructs that will enable other-worldly creatures to enter our dimension, seeking sustenance. They are gaining so much power that even Moriarty fears that his empire is at risk - to the point that he seeks an unholy alliance with his eternal foe.
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Lois H. Gresh
Lois H. Gresh is author of 15 pop science/culture books and 4 science fiction novels from John Wiley & Sons, Random House, and St. Martin's Press. Gresh has also written dozens of short stories, and her work spans genres such as mysteries, thriller, suspense, dark fantasy, horror, and science fiction. She is probably best known for her early weird science fiction stories, which blend computer technology with biology, botany, and post-cyberpunk. She was a staff book reviewer for Science Fiction Weekly from November 2004 through December 2008.
Sherlock Holmes vs. Cthulhu
Sherlock Holmes vs. Cthulhu consists of three books. The current recommended reading order for the series is provided below.

