The Fourth
Witness
Four witnesses entered the courtroom. Only three told the truth. From the fictional #1 New York Times bestselling author Evelyn Mercer comes a courtroom mystery about memory, power and the cost of one final testimony.
Every testimony leaves a shadow.
A prominent judge is found dead hours before delivering the verdict in the most controversial trial of the decade. The evidence is perfect. The witnesses agree. The case should be closed—until a fourth name appears in the sealed court record.
Defence attorney Mara Voss has built her career on spotting the detail everyone else misses. When an anonymous envelope leads her to a witness the prosecution insists does not exist, she is pulled into a conspiracy stretching from a private courtroom to the highest levels of state power.
The witness remembers the night differently. The security footage has been altered. And someone is willing to kill to keep the official story intact.
With the launch of a retrial days away, Mara must decide whether the truth can still save an innocent man—or whether revealing it will destroy everyone who survived.
Removed from the official archive.
Only three appear in court.
And no safe way to reach it.
“A sharp, atmospheric courtroom mystery that keeps changing the meaning of the evidence.”
Advance review · The Meridian Review
August
2026
An evening of secrets, stories and suspense.
Join the author for an exclusive launch-night conversation, live reading, audience Q&A and signed first-edition copies.
The Fourth Witness: Official Launch Night
A fictional public book event presented by Blackstone & Vale Press.
Register InterestAvailable wherever books are found.
From August 14, 2026, The Fourth Witness will be available in hardcover, paperback, eBook and audiobook formats, with international delivery through major booksellers.