James Lovegrove is the New York Times best-selling author of The Age of Odin, the third novel in his critically-acclaimed Pantheon military SF series.

He was short-listed for the Arthur C. Clarke Award in 1998 for his novel Days and for the John W. Campbell Memorial Award in 2004 for his novel United Kingdom.

He also reviews fiction for the Financial Times. He is the author of Sherlock Holmes: Gods of War and Sherlock Holmes: The Stuff of Nightmares for Titan Books.

David Stuart Davies is one of Britain's leading Sherlockian writers. He was editor of Sherlock Holmes The Detective Magazine, authored several Holmes novels, hit play Sherlock Holmes: The Last Act, Titan's Starring Sherlock Holmes and a biography of Jeremy Brett. He is advisor to the Sherlock Holmes museum, and contributed commentaries to DVDs of the Basil Rathbone Holmes films.