400 pages
"Tarry Flynn" by Patrick Kavanagh has around 266 pages in its complete edition.
Vince Flynn wrote a total of 18 books. His most famous series was the Mitch Rapp series, which consists of 17 novels. Vince Flynn passed away in 2013, and Kyle Mills took over the Mitch Rapp series, continuing to write novels in the same franchise.
The Bronx Kill has 184 pages.
To Kill the Potemkin has 255 pages.
The Big Kill has 224 pages.
The Kill Artist has 480 pages.
Generation Kill has 368 pages.
A Time to Kill has 515 pages.
High Time to Kill has 304 pages.
He Wouldn't Kill Patience has 217 pages.
And Kill Once More has 188 pages.
"Gone Girl" by Gillian Flynn has 432 pages in the hardcover edition. The paperback edition may have a different number of pages.