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When a bomb detonates outside a Harvard law school building, killing several including a law student who was counseling Jackie Kelvinski, a woman trying to get out of an abusive marriage, Jackie is afraid that the bomb was set off by her unstable husband. Annie Squires, an investigator helping her out, tries to convince her that's unlikely, but Jackie's not listening. And before the Cambridge police get very far in their investigation to determine who could have committed such a crime, a second deadly bomb explodes, this time at a Cambridge courthouse.

The bomb narrowly misses forensic neuropsychologist Dr. Peter Zak, late for a meeting inside. Peter, suddenly closer to the action that he'd like to be, agrees to help the police by profiling the bomber from some anti-government fliers found at the crime scene. But were they really written by the perpetrator? Or is the bomber's motive more personal, perhaps directed at Jackie, or Peter, or another target? Delving deeper into the mind of the criminal, Peter must work quickly before more lives are lost, including possibly his own.

Guilt, G. H. Ephron's latest thrilling psychological suspense novel, is a fascinating and surprising novel about motive and murder, survivor's guilt and criminal culpabilty--and trying to stay one step ahead of a killer.

286 pages, Kindle Edition

First published March 1, 2005

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About the author

G.H. Ephron

6 books11 followers
Hallie Ephron and forensic neuropsychologist Donald Davidof are co-authors of the Dr. Peter Zak medical/psychological mysteries. They write under the shared pseudonum G.H. Ephron. The character of Dr. Zak is based loosely on Don, who runs a unit at the McLean, Harvard's psychiatric hospital, and often consults as an expert witness for the defense in criminal cases.

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Displaying 1 - 6 of 6 reviews
Profile Image for Paulatics.
220 reviews6 followers
July 18, 2017
Loved this whole series. I hope the author writes more Dr. Peter Zak books.
Profile Image for judy.
947 reviews28 followers
November 13, 2009
I read all five books in the Dr. Peter Zak series--in order,of course. The first was a tad iffy but you could tell that the series would only get better and better. GH Ephron is the pen name for Halle Ephron (of the famous Ephron sisters) and her friend Dr. Don Davidoff, a practicing forensic psychologist. No doubt she is responsible for the excellent writing but his explanations of psychology--particularly of testing--make the books what they are. Yes, we have Kellerman and a ton of other medical professionals writing excellent mysteries. What sets the Zak series apart is that I actually learned a great deal and had great fun doing it. There hasn't been a Zak book in several years. I'm afraid that five is all we will get and it's our loss.
Profile Image for April .
964 reviews9 followers
October 28, 2012
It's the first one I've read of the series, though the 4th book they had. The collaborative team of Hallie Ephron and Donald Davidoff has a pretty good mystery/thriller about an investigator for a criminal defense attorney and her neuropsych boyfriend, who keeps getting dragged into high profile cases. In this situation, there are 2 mysteries...a pyschopath bomber and an abusive husband. Pretty good characters and fairly quick plot...OK fun read.
218 reviews
June 6, 2013
A twisted man sets off bombs and a twisted man beats his wife. Both cross paths with neuropsychologist Peter Zak and defense investigator Annie Squires.
Displaying 1 - 6 of 6 reviews

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