The Reversal is the 22nd novel by American author Michael Connelly and features the third major appearance of Los Angeles criminal defense attorney Michael "Mickey" Haller. Connelly introduced Haller in his bestselling 2005 novel The Lincoln Lawyer and then paired him with LAPD detective Harry Bosch, his half-brother, in 2008's The Brass Verdict. In 2009's 9 Dragons, Haller was a secondary character as Bosch's personal lawyer. The Reversal was published in the United States on October 5, 2010.
Mickey Haller, who has become increasingly frustrated in his role as a defense lawyer, agrees to undertake the prosecution role on behalf of the city of Los Angeles, in the retrial of a convicted kidnapper and killer that had been granted as a result of new DNA evidence. His one condition before accepting the task is that he is permitted to choose his own team; he chooses his ex-wife Maggie McPherson as his co-prosecutor, and his half-brother Harry Bosch as his investigator from the LAPD. The prosecution case rests largely on the testimony of Sarah Gleason, the elder sister of the victim, Melissa Landy.