The Proving Ground: A Lincoln Lawyer Novel 

The Lincoln Lawyer Returns — A Novel by Michael Connelly

From #1 New York Times bestselling author Michael Connelly comes a gripping new legal thriller featuring Mickey Haller—the Lincoln Lawyer—facing his most dangerous and high-stakes case yet.

After his “resurrection walk,” Mickey seeks a new path in his career and takes on a bold civil case against a powerful AI company—one whose chatbot allegedly told a sixteen-year-old boy that it was acceptable to kill his ex-girlfriend for being disloyal.

Representing the victim’s grieving family, Haller takes on the murky, fast-evolving world of artificial intelligence—where profits soar, regulations lag, and ethics fall behind. Joining forces with journalist Jack McEvoy, who hopes to document the case, Haller digs deep into discovery files and uncovers a crucial whistleblower willing to risk everything to tell the truth.

But with billions on the line, the case becomes more dangerous by the day. To win, Mickey must risk everything—using a daring courtroom strategy reminiscent of the legendary chess move known as “the knight’s sacrifice.”

Brilliantly plotted, timely, and suspenseful, The Lincoln Lawyer takes on the rise of AI and the cost of justice in a world where machines may be smarter—but not wiser—than humans.

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