Gray Investigative Books in Order
Complete reading order for the Gray Investigative series.
FAQ
How many books are in the Gray Investigative series?
3 books
When will the next book in the series be released?
No new book is currently scheduled. The latest book, Death Benefit, was published in July 2000.
When was the most recent book released?
Death Benefit was published in July 2000.
What was the first book in the series?
The first book in the series is Payback, published in October 1991.
What genre is the Gray Investigative series?
The series primarily falls into the Private Investigator genre.
Is the Gray Investigative series finished?
The series does not currently have a new book scheduled.
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