Mr. Mercedes is a novel by American writer Stephen King. He calls it his first hard-boiled detective book. It was published on June 3, 2014. On June 10, 2014 the author described Mr. Mercedes on Twitter as the first volume of a projected trilogy, to be followed in the first half of 2015 by Finders Keepers, the first draft of which was finished around the time Mr. Mercedes was published, and End of Watch.
The novel won the 2015 Edgar Award for Best Novel from the Mystery Writers of America and Goodreads Choice Awards for 2014 in the “Mystery and Thriller” category.