A series of grisly murders rocks London. At each location, only a jumble of bones remains of the deceased, along with a bizarre sphere covered in strange symbols. The son of the latest victim seeks the help of Sherlock Holmes and his former partner, Dr. John Watson. They discover the common thread tying together the murders. Bizarre geometries, based on ancient schematics, enable otherworldly creatures to enter our dimension, seeking to wreak havoc and destruction. The persons responsible are gaining so much power that even Holmes's greatest enemy fears them - to the point that he seeks an unholy alliance.

Taschenbuch
The crossover series blending Arthur Conan Doyle's characters with the elements of H.P. Lovecraft's fiction continues. Holmes, Watson and Mycroft follow Moriarty and Fitzgerald to Innsmouth, putting them all the way of a structure designed to bring the Old Ones into the human world.