
The Collateral Heart by Jeffery Deaver
11/17/26; 416 pages
G.P. Putnam's Sons
Lincoln Rhyme series #17
The Collateral Heart by Jeffery Deaver is a highly recommended investigative thriller and the 17th book in the Lincoln Rhyme series. After former Homicide Detective Lincoln Rhyme became a quadriplegic, he began working as a Forensic Criminalist/Consultant with the NYPD. Amelia Sachs is his partner and wife who acts as his eyes as she walks crime scenes. This time they are investigating a series of arson cases in New York City.
The first fire was set at the abandoned Abernathy & Ca building in Spanish Harlem and nearly kills a homeless man living there. The arsonist left behind a clue: a fireproof box with the number 1 painted on and contents that provide clues which once parsed indicate more fires will be happening and they do. The two turn to James Harper, a famous historian and host of a popular history podcast for information about the clues. Simultaneously another investigation is underway. Desdemona (Des) Vale is a detective and grandmother from Long Island who is determinedly and diligently searching for the killer of a young woman.
Adding to the complexity, NYPD partner, Detective Lon Sellitto visits Rhyme to discuss the attempted assassination of Edward McGuire, founder and CEO of McGuire Computer Services, the developer of a new large language search engine. The assassin, anti-corporate activist Thomas Elron Olsen, was shot by McGuire's bodyguard, but Sellitto suspects a larger widespread conspiracy is afoot. Could all of this tie together?
This is a well-written, complex series of investigations underway that keep a steady pace as clues are uncovered and leads followed in the plot. In the investigations everything - clues, information, and evidence - is all logically uncovered and followed up on. There is a whole lot of additional information and historical background provided to support the investigation in the narrative that also serves to add complexity to the already complicated twisty plot. I did feel my attention waning at times while reading, but everything does lead to a satisfying conclusion.
At this point, when you reach book 17 in a series, the main characters and supporting characters are all well known and established. This time, Des Vale is a wonderful character and addition to the plot. I especially enjoyed following her character development that was detailed enough that it seemed to point to another appearance in a future novel.
The Collateral Heart is a great choice for those who enjoy complex investigative procedurals and are following the Lincoln Rhyme series. Thanks to G.P. Putnam's Sons for providing me with an advance reader's copy via NetGalley. My review is voluntary and expresses my honest opinion.





