[3] A series of mysterious deaths inspire Sherlock Holmes and Dr. Watson to investigate the criminal element of the East End of London.

Their investigation leads to crime lord Gong-Fen Shou but further opens their eyes to the existence of something much worse.

Glenn Dallas of Seattle Book Review said "Lovegrove does an outstanding job of evoking Doyle’s style and mixing in healthy dollops of the macabre and fantastic that define the Cthulhu Mythos.

"[4] The Guardian said of the novel, "The pastiche is pitch-perfect; Lovegrove tells a thrilling tale and vividly renders the atmosphere of Victorian London.

"[5] Starburst magazine said of the book "It retains the spirit of classic Holmes, while the integration of Lovecraft mythos is handled with careful aplomb.