Holmes and Moriarty: The new official Sherlock Holmes novel

Preorder The Waterfall, the brand new Gareth Rubin novel, coming Autumn 2025.

THE CLEVER AND INTRIGUING CRIME MYSTERY FROM THE AUTHOR OF THE INSTANT TOP TEN SUNDAY TIMES BESTSELLER, THE TURNGLASS.

A new Sherlock Holmes novel, endorsed by the Conan Doyle Estate. 

'A wonderfully entertaining, high-speed, high-stakes adventure with two, no FOUR and more, characters from classic detective fiction! An accomplished tribute, true to the spirit of Conan-Doyle, but with a thrillingly original story and enough accomplished inventiveness to captivate and satisfy' Janice Hallett

Two adversaries. One deadly alliance. Together, can they unlock the truth? 

Sherlock Holmes and Dr John Watson have been hired by actor George Reynolds to help him solve a puzzle. George wants to know why the audience who comes to see him perform are the same people, only wearing different disguises each night. Is something sinister going on and, if so, what?

Meanwhile, Holmes’ archenemy, Professor James Moriarty is having problems of his own. Implicated in the murder of a gang leader, Moriarty and his second, Moran, must go on the run from the police in order to find out who is behind the set-up.

But their investigation puts them in the way of Holmes and Watson and it’s not long before all four realise that they are being targeted by the same person. With their lives on the line, they must form an uneasy alliance in order to unmask the true villain. With clues leading them to a conspiracy far greater than any of them expected, who can be trusted – and who will survive?

'Beautifully written and perfectly capturing the Holmesian spirit. And, yes, sometimes I side with Prof. Moriarty, and I don't care who knows it. Love an evil genius . . .' Vaseem Khan 

'Holmes and Moriarty is a rip-roaring thriller, fast-paced and twisty as the greatest detective and the greatest criminal become unlikely allies against the most formidable foes' Martin Edwards