X (Grafton novel)

"X"
First edition cover
AuthorSue Grafton
LanguageEnglish
SeriesAlphabet Mysteries
GenreMystery fiction
PublisherG.P. Putnam's Sons
Publication date
August 25, 2015
Publication placeUnited States
Media typePrint (Hardcover)
Pages400 first edition
ISBN978-0-399-16384-5
Preceded by"W" Is for Wasted 
Followed by"Y" Is for Yesterday 

"X" is the twenty-fourth novel in the "Alphabet" series of mystery novels by Sue Grafton. It features Kinsey Millhone, a private detective based in Santa Teresa, California, a fictional version of Santa Barbara, California.

The novel, set in the late 1980s, finds Kinsey pursuing a sociopathic serial killer. It was published by G.P. Putnam's Sons, and released in the United States on August 25, 2015.