It’s been two years since Injustice aired and Detective Daniel Hawthorne needs cash. Having gotten himself fired from his job at the Metropolitan police, Hawthorne decides to approach Anthony Horowitz. He’s investigating a bizarre and complex murder and he wants Anthony to write a book about it, a bestselling book of course, with a 50/50 split.

The only catch is they need to solve the crime.

But award winning crime writer Anthony Horowitz has never been busier in his life. He’s working on Foyle’s War and writing his first Sherlock Holmes novel. He has a life of his own and doesn’t really want to be involved with a man he finds challenging to say the least. And yet he finds himself fascinated by the case and the downright difficult detective with the brilliant, analytical mind. Would it be really such a crazy idea for Anthony to become the Watson to his Holmes? The Hastings to his Poirot?

Should he stick to writing about murder? Or should he help investigate?

A classic crime for the modern reader, The Word is Murder is a whodunnit to end all whodunnits.
(source)