A heading in Red indicates that the character appears in, or plays an important offstage role in, the story. Titles in regular type are those in which the character appears. Titles in italics indicate that the character is merely mentioned. Page numbers indicate the page on which the character appears or is mentioned.

Click on these links for publication details of editions used for indexing:

short stories | novels | children's stories

X-Men (Marvel Comic Book Characters)
Sherlock Sam and the Ghostly Moans in Fort Canning (A.J. Low) 6

Xangô (Yoruba Deity of Lightning & Masculine Virility)
A Samba for Sherlock (Jô Soares) 233-234, 240, 262

Xanthippe (Wife of Socrates)
"Mr. Homes Solves A Question of Authorship" (John Kendrick Bangs) 209;
The Pursuit of the Houseboat (John Kendrick Bangs) 2-3, 5, 10, 55, 68-71, 89, 91-92, 96-97, 139-140, 148-149, 152, 154-155, 168, 192, 194, 198-200, 203
The Case of the Revolutionist's Daughter (Lewis S. Feuer) 76-77, 79; "The Sacred White Elephant of Mandalay" (Michael Mallory) 129
Xanthippic: The Pursuit of the House-Boat (John Kendrick Bangs) 71

Xavier, Jerome (Spanish Missionary, 1549-1617)
Watson's Afghan Adventure (Kieran McMullen) 36

Xenocrates (Greek Philosopher, 396-314 BC)
The Giant Rat of Sumatra (Daniel Gracely) 115

Xenophon (Greek Soldier & Writer, c.430-354BC)
The Language of Bees (Laurie R. King) 14

Xerxes (King of Persian (486-465BC), c.519-465BC)
Sherlock Holmes and the Hapsburg Tiara (Alan Vanneman) 164

Xianfeng (Chinese Emperor (1850-61), 1831-1861)
Sherlock Holmes and the Shadwell Shadows (James Lovegrove) 103, 149; Sherlock Holmes and the Nine-Dragon Sigil (Tim Symonds) 152, 167

Xiaodingjing, Empress: see Longyu

Ximena (Wife of El Cid)
"Mrs. Farintosh & An Opal Tiara" (Ian Charnock) 189

Ximenes (16th Century Spanish Cardinal)
A Samba for Sherlock (Jô Soares) 101

Xirdal, Zephyrin (The Meteor Hunt - Jules Verne)
"The Dynamics of an Asteroid" (John Peel) 181-192
Professor Xirdal Zephyrin: The Great Game (Lavie Tidhar) 742-746, 749, 752, 783, 843-844, 997-998

Xu Xing (Chinese Paleontologist, 1969- )
Sherlock Holmes and the Nine-Dragon Sigil (Tim Symonds) 151

Xuantong (Chinese Emperor (1908-11), 1906-1967)
Locked Rooms (Laurie R. King) 53

Xuanzang / Hsuan-tang (Chinese Scholar, c.602-664)
Sherlock Holmes and the Nine-Dragon Sigil (Tim Symonds) 38