New York: Bantam, (2009.) dj. SIGNED hardcover first edition - Ninth mystery featuring young Mary Russell and the aging, but more human, Sherlock Holmes. SIGNED on the title page. 433 pp. ISBN: 9780553804546.

New York: St Martin's, (1995.) dj. SIGNED hardcover first edition - Second mystery featuring young Mary Russell and the aging, but more human, Sherlock Holmes. SIGNED by author on title page. An excellent book by this prize winning author, sequel to the Edgar-award winning 'Beekeeper's Apprentice'. 326 pp. ISBN: 0-312-135653.

London: Titan Books, (2014). SIGNED - The first book in this series featuring Sherlock Holmes's nemesis, the brilliant mathematics professor, James Moriarty. SIGNED on the title page. 261 pp plus several pages publisher's ads. ISBN: 978-1783293261.

London: Titan Books, (2014). First edition - The fifth book in this series featuring the brilliant mathematics professor, James Moriarty. Set in London, 1892, where Prince Albert, grandson of Queen Victoria, has disappeared leaving behind a woman's body. In the absence of Holmes, Mycroft turns to Moriarity for help - but he is also facing murder charges. 290 pp plus several pages publisher's ads. ISBN: 978-1783293346.

New York: Donald I. Fine, Inc., (1987) dj. Hardcover first edition - The second novel in his highly praised "Holmes" series, set in Russia. Second state with the pages with the rather numerous errors replaced. 285 pp. Dust jacket by Paul Bacon. ISBN: 1-556110111.

New York: Donald I. Fine, Inc., (1987) dj. Hardcover first edition - The second novel in his highly praised "Holmes" series, set in Russia. Second state with the pages with the rather numerous errors replaced. 285 pp. Dust jacket by Paul Bacon. ISBN: 1-556110111.

New York: Trident Press, (1971.) dj. Hardcover first edition - The Philadelphia branch ("The Sons of the Copper Beeches") of the Baker Street Irregulars engage in a competition when one of their members has the temerity to suggest that Sherlock Holmes was only able to solve his crimes because of all the clues Arthur Conan Doyle provided. At stake is a suberb collection of Sherlockiana, but this good-natured chase soon becomes deadly. 317 pp. ISBN: 0-671-270834.

London: Ferret Fantasy Ltd, 1973. First edition - Collects seven parodies of supernatural fiction, edited and with an introduction by George Locke. The authors parodied are Arthur Conan Doyle (twice), Fergus Hume, Arthur Machen, H. Rider Haggard, Jules Verne, and H. P. Lovecraft in the title story by Arthur C. Clarke. Illustrated by Peter Fuller and Jim Cawthorn with full page black and white drawings. Edition limited to 1000 copies. Cover design of "Virgin Filigree" is by Cawthorn "in the style of Vigil Finlay." 111 pp. Errata slip tipped onto the inside of the rear cover.

New York: Quercus, (2017). First edition - The author's first novel, set in London in 1909 in a world full of international intrigue, both from the Germans and Russian anarchists. Features Wiggins, a former street boy who was trained by Sherlock Holmes as one of his Baker St Irregulars, A great start to a new series. Historical notes. 294 pp.

New York: Twelve, (2010.). SIGNED first edition - The author's first novel - a bibliomystery. Bram Stoker and Arthur Conan Doyle team up to solve a real-life mystery, but the journal in which Doyle records the adventure goes missing. In 2010 a Sherlock Holmes scholar announces that he has found the missing journal but shortly afterwards is found dead. SIGNED and Dated by the author 10/16/10 almost two months before the release of the hard cover edition. 350 pp.

New York: TOR / Tom Doherty Associates, (2013). SIGNED - The first novel in a new series of lighthearted historical mysteries set in 1890s San Francisco, and introducing former Pinkerton operative Sabina Carpenter and her detective partner, ex-Secret Service agent John Quincannon. SIGNED by both authors on the title page. Authors' note. 269 pp. ISBN: 978-0765331779.

Palo Alto, CA: Perseverance Press , (2004.). First edition - In 1903, widow Charlotte Dodson, housekeeper at a manor in a small Sussex village which has been leased by a mysterious stranger, finds herself in the midst of sinister events involving an escapee from Dartmoor Prison, tales of a vampire on the loose and a fabulous jewel called the Orb of Kezir. With the assistance of Sherlock Holmes, her young son, and her own powers of observation,the resourceful Charlotte untangles this complex web. 259 pp.

New York: St Martin's, (1992.) dj. Hardcover - The author's first mystery: Holmes and Watson are called in to solve the real-life assassination in 1911 of American journalist David Graham Phillips. 186 pp. ISBN: 0-312-082916.